712905647 has 8 divisors (see below), whose sum is σ = 715468800. Its totient is φ = 710348184.

The previous prime is 712905629. The next prime is 712905649. The reversal of 712905647 is 746509217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 712905647 - 2¹² = 712901551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712905649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556754 + ... + 558032.

It is an arithmetic number, because the mean of its divisors is an integer number (89433600).

Almost surely, 2^712905647 is an apocalyptic number.

712905647 is a deficient number, since it is larger than the sum of its proper divisors (2563153).

712905647 is a wasteful number, since it uses less digits than its factorization.

712905647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2845.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 712905647 is about 26700.2930133735. The cubic root of 712905647 is about 893.3274619828.

The spelling of 712905647 in words is "seven hundred twelve million, nine hundred five thousand, six hundred forty-seven".