30008979 has 48 divisors (see below), whose sum is σ = 58216704. Its totient is φ = 14385600.

The previous prime is 30008977. The next prime is 30008989. The reversal of 30008979 is 97980003.

It is not a de Polignac number, because 30008979 - 2¹ = 30008977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30008977) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7344 + ... + 10674.

It is an arithmetic number, because the mean of its divisors is an integer number (1212848).

Almost surely, 2^30008979 is an apocalyptic number.

30008979 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

30008979 is a deficient number, since it is larger than the sum of its proper divisors (28207725).

30008979 is a wasteful number, since it uses less digits than its factorization.

30008979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368 (or 3365 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 30008979 is about 5478.0451805366. The cubic root of 30008979 is about 310.7542473261.

The spelling of 30008979 in words is "thirty million, eight thousand, nine hundred seventy-nine".