475764921 has 40 divisors (see below), whose sum is σ = 756066080. Its totient is φ = 297292032.

The previous prime is 475764901. The next prime is 475764977. The reversal of 475764921 is 129467574.

It is not a de Polignac number, because 475764921 - 2¹⁷ = 475633849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475764901) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 147690 + ... + 150876.

It is an arithmetic number, because the mean of its divisors is an integer number (18901652).

Almost surely, 2^475764921 is an apocalyptic number.

It is an amenable number.

475764921 is a deficient number, since it is larger than the sum of its proper divisors (280301159).

475764921 is a wasteful number, since it uses less digits than its factorization.

475764921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3315 (or 3306 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 475764921 is about 21812.0361497958. The cubic root of 475764921 is about 780.6639760492.

The spelling of 475764921 in words is "four hundred seventy-five million, seven hundred sixty-four thousand, nine hundred twenty-one".