30693875 has 24 divisors (see below), whose sum is σ = 39990912. Its totient is φ = 23496000.

The previous prime is 30693869. The next prime is 30693881. The reversal of 30693875 is 57839603.

It is an interprime number because it is at equal distance from previous prime (30693869) and next prime (30693881).

It is a de Polignac number, because none of the positive numbers 2^k-30693875 is a prime.

It is a super-2 number, since 2×30693875² = 1884227925031250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 344831 + ... + 344919.

It is an arithmetic number, because the mean of its divisors is an integer number (1666288).

Almost surely, 2^30693875 is an apocalyptic number.

30693875 is a deficient number, since it is larger than the sum of its proper divisors (9297037).

30693875 is an frugal number, since it uses more digits than its factorization.

30693875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 30693875 is about 5540.2053211050. The cubic root of 30693875 is about 313.1006049364.

The spelling of 30693875 in words is "thirty million, six hundred ninety-three thousand, eight hundred seventy-five".