464503681 has 2 divisors, whose sum is σ = 464503682. Its totient is φ = 464503680.

The previous prime is 464503657. The next prime is 464503687. The reversal of 464503681 is 186305464.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 368640000 + 95863681 = 19200^2 + 9791^2 .

It is a cyclic number.

It is not a de Polignac number, because 464503681 - 2⁵ = 464503649 is a prime.

It is a super-2 number, since 2×464503681² = 431527339325099522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 464503681.

It is not a weakly prime, because it can be changed into another prime (464503687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232251840 + 232251841.

It is an arithmetic number, because the mean of its divisors is an integer number (232251841).

Almost surely, 2^464503681 is an apocalyptic number.

It is an amenable number.

464503681 is a deficient number, since it is larger than the sum of its proper divisors (1).

464503681 is an equidigital number, since it uses as much as digits as its factorization.

464503681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 464503681 is about 21552.3474591516. The cubic root of 464503681 is about 774.4553542704.

The spelling of 464503681 in words is "four hundred sixty-four million, five hundred three thousand, six hundred eighty-one".