78930053 has 2 divisors, whose sum is σ = 78930054. Its totient is φ = 78930052.

The previous prime is 78930041. The next prime is 78930101. The reversal of 78930053 is 35003987.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70274689 + 8655364 = 8383^2 + 2942^2 .

It is a cyclic number.

It is not a de Polignac number, because 78930053 - 2⁴ = 78930037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78929995 and 78930022.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78930013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39465026 + 39465027.

It is an arithmetic number, because the mean of its divisors is an integer number (39465027).

Almost surely, 2^78930053 is an apocalyptic number.

It is an amenable number.

78930053 is a deficient number, since it is larger than the sum of its proper divisors (1).

78930053 is an equidigital number, since it uses as much as digits as its factorization.

78930053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 78930053 is about 8884.2587197807. The cubic root of 78930053 is about 428.9573675810.

The spelling of 78930053 in words is "seventy-eight million, nine hundred thirty thousand, fifty-three".