407967823 has 2 divisors, whose sum is σ = 407967824. Its totient is φ = 407967822.

The previous prime is 407967799. The next prime is 407967841. The reversal of 407967823 is 328769704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 407967823 - 2¹³ = 407959631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (407967893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203983911 + 203983912.

It is an arithmetic number, because the mean of its divisors is an integer number (203983912).

Almost surely, 2^407967823 is an apocalyptic number.

407967823 is a deficient number, since it is larger than the sum of its proper divisors (1).

407967823 is an equidigital number, since it uses as much as digits as its factorization.

407967823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 407967823 is about 20198.2133615823. The cubic root of 407967823 is about 741.6664556046. Note that the first 3 decimals are identical.

The spelling of 407967823 in words is "four hundred seven million, nine hundred sixty-seven thousand, eight hundred twenty-three".