408472679 has 2 divisors, whose sum is σ = 408472680. Its totient is φ = 408472678.

The previous prime is 408472661. The next prime is 408472699. The reversal of 408472679 is 976274804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 408472679 - 2¹² = 408468583 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408472619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204236339 + 204236340.

It is an arithmetic number, because the mean of its divisors is an integer number (204236340).

Almost surely, 2^408472679 is an apocalyptic number.

408472679 is a deficient number, since it is larger than the sum of its proper divisors (1).

408472679 is an equidigital number, since it uses as much as digits as its factorization.

408472679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 408472679 is about 20210.7070385971. The cubic root of 408472679 is about 741.9722643735.

The spelling of 408472679 in words is "four hundred eight million, four hundred seventy-two thousand, six hundred seventy-nine".