30980697 has 16 divisors (see below), whose sum is σ = 47435520. Its totient is φ = 17787600.

The previous prime is 30980693. The next prime is 30980759. The reversal of 30980697 is 79608903.

It is a happy number.

It is not a de Polignac number, because 30980697 - 2² = 30980693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30980693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24079 + ... + 25332.

It is an arithmetic number, because the mean of its divisors is an integer number (2964720).

Almost surely, 2^30980697 is an apocalyptic number.

It is an amenable number.

30980697 is a deficient number, since it is larger than the sum of its proper divisors (16454823).

30980697 is a wasteful number, since it uses less digits than its factorization.

30980697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49444.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 30980697 is about 5566.0306323268. The cubic root of 30980697 is about 314.0728494745.

It can be divided in two parts, 309806 and 97, that added together give a palindrome (309903).

The spelling of 30980697 in words is "thirty million, nine hundred eighty thousand, six hundred ninety-seven".