364507921 has 4 divisors (see below), whose sum is σ = 366020644. Its totient is φ = 362995200.

The previous prime is 364507919. The next prime is 364507937. The reversal of 364507921 is 129705463.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96825600 + 267682321 = 9840^2 + 16361^2 .

It is a cyclic number.

It is not a de Polignac number, because 364507921 - 2¹ = 364507919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (364507961) 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, 756000 + ... + 756481.

It is an arithmetic number, because the mean of its divisors is an integer number (91505161).

Almost surely, 2^364507921 is an apocalyptic number.

It is an amenable number.

364507921 is a deficient number, since it is larger than the sum of its proper divisors (1512723).

364507921 is a wasteful number, since it uses less digits than its factorization.

364507921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512722.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 364507921 is about 19092.0905350881. The cubic root of 364507921 is about 714.3356477530.

The spelling of 364507921 in words is "three hundred sixty-four million, five hundred seven thousand, nine hundred twenty-one".