30968685 has 24 divisors (see below), whose sum is σ = 58559904. Its totient is φ = 15014880.

The previous prime is 30968683. The next prime is 30968737. The reversal of 30968685 is 58686903.

It is not a de Polignac number, because 30968685 - 2¹ = 30968683 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 30968685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30968683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30787 + ... + 31776.

It is an arithmetic number, because the mean of its divisors is an integer number (2439996).

Almost surely, 2^30968685 is an apocalyptic number.

It is an amenable number.

30968685 is a deficient number, since it is larger than the sum of its proper divisors (27591219).

30968685 is a wasteful number, since it uses less digits than its factorization.

30968685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62585 (or 62582 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 30968685 is about 5564.9514822683. The cubic root of 30968685 is about 314.0322528975.

It can be divided in two parts, 3096 and 8685, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 30968685 in words is "thirty million, nine hundred sixty-eight thousand, six hundred eighty-five".