465223639 has 2 divisors, whose sum is σ = 465223640. Its totient is φ = 465223638.

The previous prime is 465223621. The next prime is 465223651. The reversal of 465223639 is 936322564.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 465223639 - 2⁷ = 465223511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (465223669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232611819 + 232611820.

It is an arithmetic number, because the mean of its divisors is an integer number (232611820).

Almost surely, 2^465223639 is an apocalyptic number.

465223639 is a deficient number, since it is larger than the sum of its proper divisors (1).

465223639 is an equidigital number, since it uses as much as digits as its factorization.

465223639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 40.

The square root of 465223639 is about 21569.0435346586. The cubic root of 465223639 is about 774.8552703723.

The spelling of 465223639 in words is "four hundred sixty-five million, two hundred twenty-three thousand, six hundred thirty-nine".