464613021 has 6 divisors (see below), whose sum is σ = 671107710. Its totient is φ = 309742008.

The previous prime is 464613007. The next prime is 464613047. The reversal of 464613021 is 120316464.

464613021 is a `hidden beast` number, since 4 + 646 + 13 + 0 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 457532100 + 7080921 = 21390^2 + 2661^2 .

It is not a de Polignac number, because 464613021 - 2⁵ = 464612989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464614021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25811826 + ... + 25811843.

It is an arithmetic number, because the mean of its divisors is an integer number (111851285).

Almost surely, 2^464613021 is an apocalyptic number.

It is an amenable number.

464613021 is a deficient number, since it is larger than the sum of its proper divisors (206494689).

464613021 is a wasteful number, since it uses less digits than its factorization.

464613021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51623675 (or 51623672 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 464613021 is about 21554.8839245309. The cubic root of 464613021 is about 774.5161161176.

Adding to 464613021 its reverse (120316464), we get a palindrome (584929485).

The spelling of 464613021 in words is "four hundred sixty-four million, six hundred thirteen thousand, twenty-one".