473903721 has 12 divisors (see below), whose sum is σ = 691174848. Its totient is φ = 312867864.

The previous prime is 473903711. The next prime is 473903723. The reversal of 473903721 is 127309374.

It is not a de Polignac number, because 473903721 - 2¹³ = 473895529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (473903723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254685 + ... + 256538.

It is an arithmetic number, because the mean of its divisors is an integer number (57597904).

Almost surely, 2^473903721 is an apocalyptic number.

It is an amenable number.

473903721 is a deficient number, since it is larger than the sum of its proper divisors (217271127).

473903721 is a wasteful number, since it uses less digits than its factorization.

473903721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511332 (or 511329 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 473903721 is about 21769.3298243194. The cubic root of 473903721 is about 779.6446556948.

The spelling of 473903721 in words is "four hundred seventy-three million, nine hundred three thousand, seven hundred twenty-one".