30770971 has 12 divisors (see below), whose sum is σ = 39049560. Its totient is φ = 23976960.

The previous prime is 30770933. The next prime is 30770989. The reversal of 30770971 is 17907703.

It is not a de Polignac number, because 30770971 - 2²³ = 22382363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30770911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28006 + ... + 29083.

It is an arithmetic number, because the mean of its divisors is an integer number (3254130).

Almost surely, 2^30770971 is an apocalyptic number.

30770971 is a deficient number, since it is larger than the sum of its proper divisors (8278589).

30770971 is a wasteful number, since it uses less digits than its factorization.

30770971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57114 (or 57107 counting only the distinct ones).

The product of its (nonzero) digits is 9261, while the sum is 34.

The square root of 30770971 is about 5547.1588223162. The cubic root of 30770971 is about 313.3625314826.

The spelling of 30770971 in words is "thirty million, seven hundred seventy thousand, nine hundred seventy-one".