30872398 has 8 divisors (see below), whose sum is σ = 46332720. Its totient is φ = 15428160.

The previous prime is 30872383. The next prime is 30872411. The reversal of 30872398 is 89327803.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30872398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3903 + ... + 8773.

It is an arithmetic number, because the mean of its divisors is an integer number (5791590).

Almost surely, 2^30872398 is an apocalyptic number.

30872398 is a deficient number, since it is larger than the sum of its proper divisors (15460322).

30872398 is a wasteful number, since it uses less digits than its factorization.

30872398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8042.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 30872398 is about 5556.2935487607. The cubic root of 30872398 is about 313.7064548065.

The spelling of 30872398 in words is "thirty million, eight hundred seventy-two thousand, three hundred ninety-eight".