80458639 has 2 divisors, whose sum is σ = 80458640. Its totient is φ = 80458638.

The previous prime is 80458619. The next prime is 80458657. The reversal of 80458639 is 93685408.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80458639 - 2⁵ = 80458607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80458595 and 80458604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80458619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40229319 + 40229320.

It is an arithmetic number, because the mean of its divisors is an integer number (40229320).

Almost surely, 2^80458639 is an apocalyptic number.

80458639 is a deficient number, since it is larger than the sum of its proper divisors (1).

80458639 is an equidigital number, since it uses as much as digits as its factorization.

80458639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 80458639 is about 8969.8739678994. The cubic root of 80458639 is about 431.7087925840.

The spelling of 80458639 in words is "eighty million, four hundred fifty-eight thousand, six hundred thirty-nine".