464006639 has 2 divisors, whose sum is σ = 464006640. Its totient is φ = 464006638.

The previous prime is 464006629. The next prime is 464006659. The reversal of 464006639 is 936600464.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 464006639 - 2⁸ = 464006383 is a prime.

It is a super-2 number, since 2×464006639² = 430604322072152642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (464006629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232003319 + 232003320.

It is an arithmetic number, because the mean of its divisors is an integer number (232003320).

Almost surely, 2^464006639 is an apocalyptic number.

464006639 is a deficient number, since it is larger than the sum of its proper divisors (1).

464006639 is an equidigital number, since it uses as much as digits as its factorization.

464006639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 464006639 is about 21540.8133319056. The cubic root of 464006639 is about 774.1790204571.

The spelling of 464006639 in words is "four hundred sixty-four million, six thousand, six hundred thirty-nine".