30500685 has 16 divisors (see below), whose sum is σ = 54223680. Its totient is φ = 16266960.

The previous prime is 30500627. The next prime is 30500689. The reversal of 30500685 is 58600503.

It is not a de Polignac number, because 30500685 - 2¹⁴ = 30484301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30500689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112831 + ... + 113100.

It is an arithmetic number, because the mean of its divisors is an integer number (3388980).

Almost surely, 2^30500685 is an apocalyptic number.

It is an amenable number.

30500685 is a deficient number, since it is larger than the sum of its proper divisors (23722995).

30500685 is a wasteful number, since it uses less digits than its factorization.

30500685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225945 (or 225939 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 30500685 is about 5522.7425252315. The cubic root of 30500685 is about 312.4423274904.

The spelling of 30500685 in words is "thirty million, five hundred thousand, six hundred eighty-five".