470721393 has 12 divisors (see below), whose sum is σ = 680246580. Its totient is φ = 313668576.

The previous prime is 470721373. The next prime is 470721401. The reversal of 470721393 is 393127074.

It can be written as a sum of positive squares in 2 ways, for example, as 230068224 + 240653169 = 15168^2 + 15513^2 .

It is not a de Polignac number, because 470721393 - 2⁹ = 470720881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (470721353) 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, 10555 + ... + 32447.

It is an arithmetic number, because the mean of its divisors is an integer number (56687215).

Almost surely, 2^470721393 is an apocalyptic number.

It is an amenable number.

470721393 is a deficient number, since it is larger than the sum of its proper divisors (209525187).

470721393 is a wasteful number, since it uses less digits than its factorization.

470721393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24288 (or 24285 counting only the distinct ones).

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

The square root of 470721393 is about 21696.1146982588. The cubic root of 470721393 is about 777.8955947729.

The spelling of 470721393 in words is "four hundred seventy million, seven hundred twenty-one thousand, three hundred ninety-three".