712638630 has 192 divisors, whose sum is σ = 2103506496. Its totient is φ = 165888000.

The previous prime is 712638607. The next prime is 712638637. The reversal of 712638630 is 36836217.

It is a happy number.

712638630 is a `hidden beast` number, since 7 + 12 + 6 + 3 + 8 + 630 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712638637) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3937140 + ... + 3937320.

It is an arithmetic number, because the mean of its divisors is an integer number (10955763).

Almost surely, 2^712638630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 712638630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1051753248).

712638630 is an abundant number, since it is smaller than the sum of its proper divisors (1390867866).

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

712638630 is a wasteful number, since it uses less digits than its factorization.

712638630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 712638630 is about 26695.2922815990. The cubic root of 712638630 is about 893.2159168777.

The spelling of 712638630 in words is "seven hundred twelve million, six hundred thirty-eight thousand, six hundred thirty".