712356720 has 80 divisors (see below), whose sum is σ = 2210870400. Its totient is φ = 189741312.

The previous prime is 712356709. The next prime is 712356727. The reversal of 712356720 is 27653217.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712356727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406887 + ... + 408633.

It is an arithmetic number, because the mean of its divisors is an integer number (27635880).

Almost surely, 2^712356720 is an apocalyptic number.

It is an amenable number.

712356720 is an abundant number, since it is smaller than the sum of its proper divisors (1498513680).

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

712356720 is a wasteful number, since it uses less digits than its factorization.

712356720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3462 (or 3456 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 712356720 is about 26690.0116148345. The cubic root of 712356720 is about 893.0981200498.

The spelling of 712356720 in words is "seven hundred twelve million, three hundred fifty-six thousand, seven hundred twenty".