30979061 has 2 divisors, whose sum is σ = 30979062. Its totient is φ = 30979060.

The previous prime is 30979057. The next prime is 30979099. The reversal of 30979061 is 16097903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30580900 + 398161 = 5530^2 + 631^2 .

It is a cyclic number.

It is not a de Polignac number, because 30979061 - 2² = 30979057 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30979051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15489530 + 15489531.

It is an arithmetic number, because the mean of its divisors is an integer number (15489531).

Almost surely, 2^30979061 is an apocalyptic number.

It is an amenable number.

30979061 is a deficient number, since it is larger than the sum of its proper divisors (1).

30979061 is an equidigital number, since it uses as much as digits as its factorization.

30979061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 30979061 is about 5565.8836674871. The cubic root of 30979061 is about 314.0673209544.

The spelling of 30979061 in words is "thirty million, nine hundred seventy-nine thousand, sixty-one".