6636730 has 16 divisors (see below), whose sum is σ = 12081960. Its totient is φ = 2624512.

The previous prime is 6636709. The next prime is 6636767. The reversal of 6636730 is 376366.

It can be written as a sum of positive squares in 4 ways, for example, as 3674889 + 2961841 = 1917^2 + 1721^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6636692 and 6636701.

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 7 ways as a sum of consecutive naturals, for example, 2839 + ... + 4618.

Almost surely, 2^6636730 is an apocalyptic number.

6636730 is a deficient number, since it is larger than the sum of its proper divisors (5445230).

6636730 is a wasteful number, since it uses less digits than its factorization.

6636730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7553.

The product of its (nonzero) digits is 13608, while the sum is 31.

The square root of 6636730 is about 2576.1851641526. The cubic root of 6636730 is about 187.9250682218.

It can be divided in two parts, 66367 and 30, that multiplied together give a triangular number (1991010 = T₁₉₉₅).

The spelling of 6636730 in words is "six million, six hundred thirty-six thousand, seven hundred thirty".