58640779 has 2 divisors, whose sum is σ = 58640780. Its totient is φ = 58640778.

The previous prime is 58640773. The next prime is 58640789. The reversal of 58640779 is 97704685.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 58640779 - 2⁷ = 58640651 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (58640773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29320389 + 29320390.

It is an arithmetic number, because the mean of its divisors is an integer number (29320390).

Almost surely, 2^58640779 is an apocalyptic number.

58640779 is a deficient number, since it is larger than the sum of its proper divisors (1).

58640779 is an equidigital number, since it uses as much as digits as its factorization.

58640779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 58640779 is about 7657.7267514583. The cubic root of 58640779 is about 388.5079501483.

The spelling of 58640779 in words is "fifty-eight million, six hundred forty thousand, seven hundred seventy-nine".