6723396 has 18 divisors (see below), whose sum is σ = 16995342. Its totient is φ = 2241120.

The previous prime is 6723371. The next prime is 6723403. The reversal of 6723396 is 6933276.

It can be written as a sum of positive squares in only one way, i.e., 4562496 + 2160900 = 2136^2 + 1470^2 .

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: 186761 = 6723396 / (6 + 7 + 2 + 3 + 3 + 9 + 6).

It is a d-powerful number, because it can be written as 6⁵ + 7⁵ + 2⁵ + 3¹¹ + 3¹⁴ + 9⁵ + 6⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 6723396.

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, 93345 + ... + 93416.

Almost surely, 2^6723396 is an apocalyptic number.

It is an amenable number.

6723396 is an abundant number, since it is smaller than the sum of its proper divisors (10271946).

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

6723396 is a wasteful number, since it uses less digits than its factorization.

6723396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186771 (or 186766 counting only the distinct ones).

The product of its digits is 40824, while the sum is 36.

The square root of 6723396 is about 2592.9512143502. The cubic root of 6723396 is about 188.7395421307.

The spelling of 6723396 in words is "six million, seven hundred twenty-three thousand, three hundred ninety-six".