712431820 has 48 divisors (see below), whose sum is σ = 1522422720. Its totient is φ = 279991296.

The previous prime is 712431799. The next prime is 712431833. The reversal of 712431820 is 28134217.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456201 + ... + 457759.

It is an arithmetic number, because the mean of its divisors is an integer number (31717140).

Almost surely, 2^712431820 is an apocalyptic number.

It is an amenable number.

712431820 is an abundant number, since it is smaller than the sum of its proper divisors (809990900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

712431820 is a wasteful number, since it uses less digits than its factorization.

712431820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954 (or 1952 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 712431820 is about 26691.4184711116. The cubic root of 712431820 is about 893.1295038168.

The spelling of 712431820 in words is "seven hundred twelve million, four hundred thirty-one thousand, eight hundred twenty".