364403681 has 2 divisors, whose sum is σ = 364403682. Its totient is φ = 364403680.

The previous prime is 364403659. The next prime is 364403747. The reversal of 364403681 is 186304463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 280864081 + 83539600 = 16759^2 + 9140^2 .

It is a cyclic number.

It is not a de Polignac number, because 364403681 - 2²⁶ = 297294817 is a prime.

It is a super-2 number, since 2×364403681² = 265580085452699522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (364403981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182201840 + 182201841.

It is an arithmetic number, because the mean of its divisors is an integer number (182201841).

Almost surely, 2^364403681 is an apocalyptic number.

It is an amenable number.

364403681 is a deficient number, since it is larger than the sum of its proper divisors (1).

364403681 is an equidigital number, since it uses as much as digits as its factorization.

364403681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 364403681 is about 19089.3604135917. The cubic root of 364403681 is about 714.2675473151.

The spelling of 364403681 in words is "three hundred sixty-four million, four hundred three thousand, six hundred eighty-one".