364067721 has 12 divisors (see below), whose sum is σ = 553553520. Its totient is φ = 229937400.

The previous prime is 364067707. The next prime is 364067723. The reversal of 364067721 is 127760463.

364067721 is a `hidden beast` number, since 3 + 640 + 6 + 7 + 7 + 2 + 1 = 666.

It is not a de Polignac number, because 364067721 - 2⁶ = 364067657 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (364067723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1064355 + ... + 1064696.

It is an arithmetic number, because the mean of its divisors is an integer number (46129460).

Almost surely, 2^364067721 is an apocalyptic number.

It is an amenable number.

364067721 is a deficient number, since it is larger than the sum of its proper divisors (189485799).

364067721 is a wasteful number, since it uses less digits than its factorization.

364067721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129076 (or 2129073 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 364067721 is about 19080.5587182346. The cubic root of 364067721 is about 714.0479747912.

The spelling of 364067721 in words is "three hundred sixty-four million, sixty-seven thousand, seven hundred twenty-one".