30828875 has 32 divisors (see below), whose sum is σ = 47983104. Its totient is φ = 19212000.

The previous prime is 30828859. The next prime is 30828877. The reversal of 30828875 is 57882803.

It is not a de Polignac number, because 30828875 - 2⁴ = 30828859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30828877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8024 + ... + 11226.

It is an arithmetic number, because the mean of its divisors is an integer number (1499472).

Almost surely, 2^30828875 is an apocalyptic number.

30828875 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30828875 is a deficient number, since it is larger than the sum of its proper divisors (17154229).

30828875 is a wasteful number, since it uses less digits than its factorization.

30828875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236 (or 3226 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 30828875 is about 5552.3756176973. The cubic root of 30828875 is about 313.5589674281.

The spelling of 30828875 in words is "thirty million, eight hundred twenty-eight thousand, eight hundred seventy-five".