364777021 has 6 divisors (see below), whose sum is σ = 424332510. Its totient is φ = 312665976.

The previous prime is 364777019. The next prime is 364777037. The reversal of 364777021 is 120777463.

It can be written as a sum of positive squares in only one way, i.e., 231374521 + 133402500 = 15211^2 + 11550^2 .

It is not a de Polignac number, because 364777021 - 2¹ = 364777019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (364777001) 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 5 ways as a sum of consecutive naturals, for example, 3722166 + ... + 3722263.

It is an arithmetic number, because the mean of its divisors is an integer number (70722085).

Almost surely, 2^364777021 is an apocalyptic number.

It is an amenable number.

364777021 is a deficient number, since it is larger than the sum of its proper divisors (59555489).

364777021 is an equidigital number, since it uses as much as digits as its factorization.

364777021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7444443 (or 7444436 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 364777021 is about 19099.1366558805. The cubic root of 364777021 is about 714.5113919337.

The spelling of 364777021 in words is "three hundred sixty-four million, seven hundred seventy-seven thousand, twenty-one".