30445693 has 2 divisors, whose sum is σ = 30445694. Its totient is φ = 30445692.

The previous prime is 30445663. The next prime is 30445697. The reversal of 30445693 is 39654403.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24029604 + 6416089 = 4902^2 + 2533^2 .

It is a cyclic number.

It is not a de Polignac number, because 30445693 - 2⁵ = 30445661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30445697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15222846 + 15222847.

It is an arithmetic number, because the mean of its divisors is an integer number (15222847).

Almost surely, 2^30445693 is an apocalyptic number.

It is an amenable number.

30445693 is a deficient number, since it is larger than the sum of its proper divisors (1).

30445693 is an equidigital number, since it uses as much as digits as its factorization.

30445693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 30445693 is about 5517.7615932550. The cubic root of 30445693 is about 312.2544391969.

The spelling of 30445693 in words is "thirty million, four hundred forty-five thousand, six hundred ninety-three".