712731330 has 48 divisors (see below), whose sum is σ = 1864941624. Its totient is φ = 188847360.

The previous prime is 712731329. The next prime is 712731343. The reversal of 712731330 is 33137217.

It can be written as a sum of positive squares in 4 ways, for example, as 625850289 + 86881041 = 25017^2 + 9321^2 .

It is a junction number, because it is equal to n+sod(n) for n = 712731294 and 712731303.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11091 + ... + 39350.

Almost surely, 2^712731330 is an apocalyptic number.

712731330 is an abundant number, since it is smaller than the sum of its proper divisors (1152210294).

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

712731330 is a wasteful number, since it uses less digits than its factorization.

712731330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50611 (or 50608 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 27.

The square root of 712731330 is about 26697.0284863316. The cubic root of 712731330 is about 893.2546450269.

Adding to 712731330 its reverse (33137217), we get a palindrome (745868547).

The spelling of 712731330 in words is "seven hundred twelve million, seven hundred thirty-one thousand, three hundred thirty".