462640447 has 2 divisors, whose sum is σ = 462640448. Its totient is φ = 462640446.

The previous prime is 462640379. The next prime is 462640459. The reversal of 462640447 is 744046264.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 462640447 - 2⁷ = 462640319 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 (462640487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 231320223 + 231320224.

It is an arithmetic number, because the mean of its divisors is an integer number (231320224).

Almost surely, 2^462640447 is an apocalyptic number.

462640447 is a deficient number, since it is larger than the sum of its proper divisors (1).

462640447 is an equidigital number, since it uses as much as digits as its factorization.

462640447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 37.

The square root of 462640447 is about 21509.0782461732. The cubic root of 462640447 is about 773.4184588261.

The spelling of 462640447 in words is "four hundred sixty-two million, six hundred forty thousand, four hundred forty-seven".