364865621 has 16 divisors (see below), whose sum is σ = 390766464. Its totient is φ = 340127424.

The previous prime is 364865609. The next prime is 364865623. The reversal of 364865621 is 126568463.

It is a cyclic number.

It is not a de Polignac number, because 364865621 - 2²⁶ = 297756757 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (364865623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82160 + ... + 86486.

It is an arithmetic number, because the mean of its divisors is an integer number (24422904).

Almost surely, 2^364865621 is an apocalyptic number.

It is an amenable number.

364865621 is a deficient number, since it is larger than the sum of its proper divisors (25900843).

364865621 is a wasteful number, since it uses less digits than its factorization.

364865621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4460.

The product of its digits is 207360, while the sum is 41.

The square root of 364865621 is about 19101.4559916254. The cubic root of 364865621 is about 714.5692360238.

The spelling of 364865621 in words is "three hundred sixty-four million, eight hundred sixty-five thousand, six hundred twenty-one".