407651863 has 2 divisors, whose sum is σ = 407651864. Its totient is φ = 407651862.

The previous prime is 407651851. The next prime is 407651887. The reversal of 407651863 is 368156704.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 407651863 - 2²⁵ = 374097431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (407651063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203825931 + 203825932.

It is an arithmetic number, because the mean of its divisors is an integer number (203825932).

Almost surely, 2^407651863 is an apocalyptic number.

407651863 is a deficient number, since it is larger than the sum of its proper divisors (1).

407651863 is an equidigital number, since it uses as much as digits as its factorization.

407651863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 407651863 is about 20190.3903627444. The cubic root of 407651863 is about 741.4749393117.

The spelling of 407651863 in words is "four hundred seven million, six hundred fifty-one thousand, eight hundred sixty-three".