30880863 has 36 divisors (see below), whose sum is σ = 49102560. Its totient is φ = 18690048.

The previous prime is 30880849. The next prime is 30880877. The reversal of 30880863 is 36808803.

It is an interprime number because it is at equal distance from previous prime (30880849) and next prime (30880877).

It is not a de Polignac number, because 30880863 - 2⁴ = 30880847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30880813) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 120031 + ... + 120287.

It is an arithmetic number, because the mean of its divisors is an integer number (1363960).

Almost surely, 2^30880863 is an apocalyptic number.

30880863 is a deficient number, since it is larger than the sum of its proper divisors (18221697).

30880863 is a wasteful number, since it uses less digits than its factorization.

30880863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 30880863 is about 5557.0552453615. The cubic root of 30880863 is about 313.7351242398.

The spelling of 30880863 in words is "thirty million, eight hundred eighty thousand, eight hundred sixty-three".