464655621 has 32 divisors (see below), whose sum is σ = 684748800. Its totient is φ = 279123840.

The previous prime is 464655619. The next prime is 464655641. The reversal of 464655621 is 126556464.

It is not a de Polignac number, because 464655621 - 2¹ = 464655619 is a prime.

It is a super-2 number, since 2×464655621² = 431809692253791282, 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 464655621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464655601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102025 + ... + 106481.

It is an arithmetic number, because the mean of its divisors is an integer number (21398400).

Almost surely, 2^464655621 is an apocalyptic number.

It is an amenable number.

464655621 is a deficient number, since it is larger than the sum of its proper divisors (220093179).

464655621 is a wasteful number, since it uses less digits than its factorization.

464655621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4569.

The product of its digits is 172800, while the sum is 39.

The square root of 464655621 is about 21555.8720770003. The cubic root of 464655621 is about 774.5397869840.

It can be divided in two parts, 464 and 655621, that added together give a triangular number (656085 = T₁₁₄₅).

The spelling of 464655621 in words is "four hundred sixty-four million, six hundred fifty-five thousand, six hundred twenty-one".