712630520 has 64 divisors (see below), whose sum is σ = 1869912000. Its totient is φ = 244325760.

The previous prime is 712630469. The next prime is 712630537. The reversal of 712630520 is 25036217.

It is a self number, because there is not a number n which added to its sum of digits gives 712630520.

It is a congruent number.

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, 12251 + ... + 39690.

It is an arithmetic number, because the mean of its divisors is an integer number (29217375).

Almost surely, 2^712630520 is an apocalyptic number.

712630520 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

712630520 is an abundant number, since it is smaller than the sum of its proper divisors (1157281480).

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

712630520 is a wasteful number, since it uses less digits than its factorization.

712630520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51973 (or 51955 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 712630520 is about 26695.1403817249. The cubic root of 712630520 is about 893.2125285271.

Adding to 712630520 its reverse (25036217), we get a palindrome (737666737).

The spelling of 712630520 in words is "seven hundred twelve million, six hundred thirty thousand, five hundred twenty".