4656604621 has 4 divisors (see below), whose sum is σ = 4661220700. Its totient is φ = 4651988544.

The previous prime is 4656604573. The next prime is 4656604637. The reversal of 4656604621 is 1264066564.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1748159721 + 2908444900 = 41811^2 + 53930^2 .

It is a cyclic number.

It is not a de Polignac number, because 4656604621 - 2²⁷ = 4522386893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4656604661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2306526 + ... + 2308543.

It is an arithmetic number, because the mean of its divisors is an integer number (1165305175).

Almost surely, 2^4656604621 is an apocalyptic number.

It is an amenable number.

4656604621 is a deficient number, since it is larger than the sum of its proper divisors (4616079).

4656604621 is a wasteful number, since it uses less digits than its factorization.

4656604621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4616078.

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 4656604621 is about 68239.3187319451. The cubic root of 4656604621 is about 1669.8973990057.

The spelling of 4656604621 in words is "four billion, six hundred fifty-six million, six hundred four thousand, six hundred twenty-one".