406672579 has 2 divisors, whose sum is σ = 406672580. Its totient is φ = 406672578.

The previous prime is 406672489. The next prime is 406672583. The reversal of 406672579 is 975276604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 406672579 - 2²³ = 398283971 is a prime.

It is a super-2 number, since 2×406672579² = 330765173021022482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (406672879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203336289 + 203336290.

It is an arithmetic number, because the mean of its divisors is an integer number (203336290).

Almost surely, 2^406672579 is an apocalyptic number.

406672579 is a deficient number, since it is larger than the sum of its proper divisors (1).

406672579 is an equidigital number, since it uses as much as digits as its factorization.

406672579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 46.

The square root of 406672579 is about 20166.1245409226. The cubic root of 406672579 is about 740.8807257803.

The spelling of 406672579 in words is "four hundred six million, six hundred seventy-two thousand, five hundred seventy-nine".