407679913 has 2 divisors, whose sum is σ = 407679914. Its totient is φ = 407679912.

The previous prime is 407679901. The next prime is 407679919. The reversal of 407679913 is 319976704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 368140969 + 39538944 = 19187^2 + 6288^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-407679913 is a prime.

It is a super-2 number, since 2×407679913² = 332405822927375138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (407679919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203839956 + 203839957.

It is an arithmetic number, because the mean of its divisors is an integer number (203839957).

Almost surely, 2^407679913 is an apocalyptic number.

It is an amenable number.

407679913 is a deficient number, since it is larger than the sum of its proper divisors (1).

407679913 is an equidigital number, since it uses as much as digits as its factorization.

407679913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 407679913 is about 20191.0849881823. The cubic root of 407679913 is about 741.4919455671.

The spelling of 407679913 in words is "four hundred seven million, six hundred seventy-nine thousand, nine hundred thirteen".