30664079 has 2 divisors, whose sum is σ = 30664080. Its totient is φ = 30664078.

The previous prime is 30664063. The next prime is 30664097. The reversal of 30664079 is 97046603.

Together with next prime (30664097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30664079 - 2⁴ = 30664063 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30660079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15332039 + 15332040.

It is an arithmetic number, because the mean of its divisors is an integer number (15332040).

Almost surely, 2^30664079 is an apocalyptic number.

30664079 is a deficient number, since it is larger than the sum of its proper divisors (1).

30664079 is an equidigital number, since it uses as much as digits as its factorization.

30664079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 30664079 is about 5537.5155981722. The cubic root of 30664079 is about 312.9992582670. Note that the first 3 decimals are identical.

The spelling of 30664079 in words is "thirty million, six hundred sixty-four thousand, seventy-nine".