364772221 has 4 divisors (see below), whose sum is σ = 397933344. Its totient is φ = 331611100.

The previous prime is 364772201. The next prime is 364772231. The reversal of 364772221 is 122277463.

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 a de Polignac number, because none of the positive numbers 2^k-364772221 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 (364772201) 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, 16580545 + ... + 16580566.

It is an arithmetic number, because the mean of its divisors is an integer number (99483336).

Almost surely, 2^364772221 is an apocalyptic number.

It is an amenable number.

364772221 is a deficient number, since it is larger than the sum of its proper divisors (33161123).

364772221 is a wasteful number, since it uses less digits than its factorization.

364772221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33161122.

The product of its digits is 28224, while the sum is 34.

The square root of 364772221 is about 19099.0109953369. The cubic root of 364772221 is about 714.5082579007.

The spelling of 364772221 in words is "three hundred sixty-four million, seven hundred seventy-two thousand, two hundred twenty-one".