58009681 has 2 divisors, whose sum is σ = 58009682. Its totient is φ = 58009680.

The previous prime is 58009631. The next prime is 58009687. The reversal of 58009681 is 18690085.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34574400 + 23435281 = 5880^2 + 4841^2 .

It is a cyclic number.

It is not a de Polignac number, because 58009681 - 2²³ = 49621073 is a prime.

It is a super-2 number, since 2×58009681² = 6730246179443522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 58009681.

It is not a weakly prime, because it can be changed into another prime (58009687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29004840 + 29004841.

It is an arithmetic number, because the mean of its divisors is an integer number (29004841).

Almost surely, 2^58009681 is an apocalyptic number.

It is an amenable number.

58009681 is a deficient number, since it is larger than the sum of its proper divisors (1).

58009681 is an equidigital number, since it uses as much as digits as its factorization.

58009681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 58009681 is about 7616.4086681322. The cubic root of 58009681 is about 387.1091996214.

The spelling of 58009681 in words is "fifty-eight million, nine thousand, six hundred eighty-one".