712445709 has 16 divisors (see below), whose sum is σ = 967127040. Its totient is φ = 466382640.

The previous prime is 712445687. The next prime is 712445719. The reversal of 712445709 is 907544217.

It is not a de Polignac number, because 712445709 - 2²⁸ = 444010253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712445719) 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, 208404 + ... + 211794.

It is an arithmetic number, because the mean of its divisors is an integer number (60445440).

Almost surely, 2^712445709 is an apocalyptic number.

It is an amenable number.

712445709 is a deficient number, since it is larger than the sum of its proper divisors (254681331).

712445709 is a wasteful number, since it uses less digits than its factorization.

712445709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4640.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 712445709 is about 26691.6786470990. The cubic root of 712445709 is about 893.1353076915.

The spelling of 712445709 in words is "seven hundred twelve million, four hundred forty-five thousand, seven hundred nine".