364688021 has 16 divisors (see below), whose sum is σ = 392999040. Its totient is φ = 337700160.

The previous prime is 364688011. The next prime is 364688053. The reversal of 364688021 is 120886463.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-364688021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (364688011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73790 + ... + 78576.

It is an arithmetic number, because the mean of its divisors is an integer number (24562440).

Almost surely, 2^364688021 is an apocalyptic number.

It is an amenable number.

364688021 is a deficient number, since it is larger than the sum of its proper divisors (28311019).

364688021 is a wasteful number, since it uses less digits than its factorization.

364688021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4924.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 364688021 is about 19096.8065654968. The cubic root of 364688021 is about 714.4532772658.

The spelling of 364688021 in words is "three hundred sixty-four million, six hundred eighty-eight thousand, twenty-one".