472721031 has 12 divisors (see below), whose sum is σ = 683167680. Its totient is φ = 314986560.

The previous prime is 472721017. The next prime is 472721087. The reversal of 472721031 is 130127274.

It is a happy number.

It is not a de Polignac number, because 472721031 - 2²² = 468526727 is a prime.

It is a super-2 number, since 2×472721031² = 446930346299405922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 472720986 and 472721004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472721131) 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, 6826 + ... + 31496.

It is an arithmetic number, because the mean of its divisors is an integer number (56930640).

Almost surely, 2^472721031 is an apocalyptic number.

472721031 is a deficient number, since it is larger than the sum of its proper divisors (210446649).

472721031 is a wasteful number, since it uses less digits than its factorization.

472721031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26806 (or 26803 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 472721031 is about 21742.1487208601. The cubic root of 472721031 is about 778.9955463093.

The spelling of 472721031 in words is "four hundred seventy-two million, seven hundred twenty-one thousand, thirty-one".