364636821 has 8 divisors (see below), whose sum is σ = 498040704. Its totient is φ = 237162080.

The previous prime is 364636819. The next prime is 364636829. The reversal of 364636821 is 128636463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 364636821 - 2¹ = 364636819 is a prime.

It is a super-2 number, since 2×364636821² = 265920022457972082, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 364636821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (364636829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1482141 + ... + 1482386.

It is an arithmetic number, because the mean of its divisors is an integer number (62255088).

Almost surely, 2^364636821 is an apocalyptic number.

It is an amenable number.

364636821 is a deficient number, since it is larger than the sum of its proper divisors (133403883).

364636821 is a wasteful number, since it uses less digits than its factorization.

364636821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964571.

The product of its digits is 124416, while the sum is 39.

The square root of 364636821 is about 19095.4659801745. The cubic root of 364636821 is about 714.4198407230.

The spelling of 364636821 in words is "three hundred sixty-four million, six hundred thirty-six thousand, eight hundred twenty-one".