470728031 has 4 divisors (see below), whose sum is σ = 476017200. Its totient is φ = 465438864.

The previous prime is 470727937. The next prime is 470728039. The reversal of 470728031 is 130827074.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-470728031 is a prime.

It is a super-2 number, since 2×470728031² = 443169758338273922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470728039) 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, 2644451 + ... + 2644628.

It is an arithmetic number, because the mean of its divisors is an integer number (119004300).

Almost surely, 2^470728031 is an apocalyptic number.

470728031 is a deficient number, since it is larger than the sum of its proper divisors (5289169).

470728031 is an equidigital number, since it uses as much as digits as its factorization.

470728031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5289168.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 470728031 is about 21696.2676744181. The cubic root of 470728031 is about 777.8992513213.

The spelling of 470728031 in words is "four hundred seventy million, seven hundred twenty-eight thousand, thirty-one".