485764821 has 12 divisors (see below), whose sum is σ = 701876448. Its totient is φ = 323743464.

The previous prime is 485764813. The next prime is 485764831. The reversal of 485764821 is 128467584.

It is not a de Polignac number, because 485764821 - 2³ = 485764813 is a prime.

It is a super-2 number, since 2×485764821² = 471934922642324082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485764831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33706 + ... + 45908.

It is an arithmetic number, because the mean of its divisors is an integer number (58489704).

Almost surely, 2^485764821 is an apocalyptic number.

It is an amenable number.

485764821 is a deficient number, since it is larger than the sum of its proper divisors (216111627).

485764821 is a wasteful number, since it uses less digits than its factorization.

485764821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16632 (or 16629 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 485764821 is about 22040.0730715667. The cubic root of 485764821 is about 786.0955781835.

The spelling of 485764821 in words is "four hundred eighty-five million, seven hundred sixty-four thousand, eight hundred twenty-one".