465515993 has 2 divisors, whose sum is σ = 465515994. Its totient is φ = 465515992.

The previous prime is 465515977. The next prime is 465516157. The reversal of 465515993 is 399515564.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 394737424 + 70778569 = 19868^2 + 8413^2 .

It is a cyclic number.

It is not a de Polignac number, because 465515993 - 2⁴ = 465515977 is a prime.

It is not a weakly prime, because it can be changed into another prime (465515693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232757996 + 232757997.

It is an arithmetic number, because the mean of its divisors is an integer number (232757997).

Almost surely, 2^465515993 is an apocalyptic number.

It is an amenable number.

465515993 is a deficient number, since it is larger than the sum of its proper divisors (1).

465515993 is an equidigital number, since it uses as much as digits as its factorization.

465515993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 729000, while the sum is 47.

The square root of 465515993 is about 21575.8196368064. The cubic root of 465515993 is about 775.0175468799.

The spelling of 465515993 in words is "four hundred sixty-five million, five hundred fifteen thousand, nine hundred ninety-three".