30093875 has 32 divisors (see below), whose sum is σ = 43390464. Its totient is φ = 20412000.

The previous prime is 30093871. The next prime is 30093883. The reversal of 30093875 is 57839003.

It is not a de Polignac number, because 30093875 - 2² = 30093871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30093871) 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 31 ways as a sum of consecutive naturals, for example, 142520 + ... + 142730.

It is an arithmetic number, because the mean of its divisors is an integer number (1355952).

Almost surely, 2^30093875 is an apocalyptic number.

30093875 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30093875 is a deficient number, since it is larger than the sum of its proper divisors (13296589).

30093875 is a wasteful number, since it uses less digits than its factorization.

30093875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 30093875 is about 5485.7884574599. The cubic root of 30093875 is about 311.0470147386.

The spelling of 30093875 in words is "thirty million, ninety-three thousand, eight hundred seventy-five".