6934644 has 18 divisors (see below), whose sum is σ = 17529330. Its totient is φ = 2311536.

The previous prime is 6934633. The next prime is 6934667. The reversal of 6934644 is 4464396.

6934644 is a `hidden beast` number, since 6 + 9 + 3 + 4 + 644 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5702544 + 1232100 = 2388^2 + 1110^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 192629 = 6934644 / (6 + 9 + 3 + 4 + 6 + 4 + 4).

It is a nude number because it is divisible by every one of its digits.

It is a d-powerful number, because it can be written as 6⁵ + 9⁷ + 3³ + 4³ + 6⁶ + 4¹⁰ + 4¹⁰ .

It is a junction number, because it is equal to n+sod(n) for n = 6934599 and 6934608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 96279 + ... + 96350.

Almost surely, 2^6934644 is an apocalyptic number.

It is an amenable number.

6934644 is an abundant number, since it is smaller than the sum of its proper divisors (10594686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6934644 is a wasteful number, since it uses less digits than its factorization.

6934644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192639 (or 192634 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 6934644 is about 2633.3712233561. The cubic root of 6934644 is about 190.6959151722.

The spelling of 6934644 in words is "six million, nine hundred thirty-four thousand, six hundred forty-four".