712605745 has 16 divisors (see below), whose sum is σ = 908979408. Its totient is φ = 534446080.

The previous prime is 712605743. The next prime is 712605749. The reversal of 712605745 is 547506217.

It can be written as a sum of positive squares in 8 ways, for example, as 137757169 + 574848576 = 11737^2 + 23976^2 .

It is not a de Polignac number, because 712605745 - 2¹ = 712605743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (712605743) 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, 5535 + ... + 38155.

It is an arithmetic number, because the mean of its divisors is an integer number (56811213).

Almost surely, 2^712605745 is an apocalyptic number.

It is an amenable number.

712605745 is a deficient number, since it is larger than the sum of its proper divisors (196373663).

712605745 is a wasteful number, since it uses less digits than its factorization.

712605745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32900.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 712605745 is about 26694.6763419226. The cubic root of 712605745 is about 893.2021773956.

The spelling of 712605745 in words is "seven hundred twelve million, six hundred five thousand, seven hundred forty-five".