364721 has 4 divisors (see below), whose sum is σ = 416832. Its totient is φ = 312612.

The previous prime is 364717. The next prime is 364739. The reversal of 364721 is 127463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 364721 - 2² = 364717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (364751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26045 + ... + 26058.

It is an arithmetic number, because the mean of its divisors is an integer number (104208).

2³⁶⁴⁷²¹ is an apocalyptic number.

It is an amenable number.

364721 is a deficient number, since it is larger than the sum of its proper divisors (52111).

364721 is an equidigital number, since it uses as much as digits as its factorization.

364721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52110.

The product of its digits is 1008, while the sum is 23.

The square root of 364721 is about 603.9213524955. The cubic root of 364721 is about 71.4474812791.

The spelling of 364721 in words is "three hundred sixty-four thousand, seven hundred twenty-one".