403673685 has 16 divisors (see below), whose sum is σ = 649161216. Its totient is φ = 214198208.

The previous prime is 403673681. The next prime is 403673701. The reversal of 403673685 is 586376304.

It is a cyclic number.

It is not a de Polignac number, because 403673685 - 2² = 403673681 is a prime.

It is a super-2 number, since 2×403673685² = 325904887922958450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403673681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65349 + ... + 71258.

It is an arithmetic number, because the mean of its divisors is an integer number (40572576).

Almost surely, 2^403673685 is an apocalyptic number.

It is an amenable number.

403673685 is a deficient number, since it is larger than the sum of its proper divisors (245487531).

403673685 is a wasteful number, since it uses less digits than its factorization.

403673685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136812.

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 403673685 is about 20091.6322134365. The cubic root of 403673685 is about 739.0550911313.

The spelling of 403673685 in words is "four hundred three million, six hundred seventy-three thousand, six hundred eighty-five".