716256745 has 8 divisors (see below), whose sum is σ = 862221384. Its totient is φ = 571196544.

The previous prime is 716256743. The next prime is 716256773. The reversal of 716256745 is 547652617.

It can be written as a sum of positive squares in 4 ways, for example, as 2725801 + 713530944 = 1651^2 + 26712^2 .

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 716256745 - 2¹ = 716256743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (716256743) 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, 224364 + ... + 227533.

It is an arithmetic number, because the mean of its divisors is an integer number (107777673).

Almost surely, 2^716256745 is an apocalyptic number.

It is an amenable number.

716256745 is a deficient number, since it is larger than the sum of its proper divisors (145964639).

716256745 is a wasteful number, since it uses less digits than its factorization.

716256745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452219.

The product of its digits is 352800, while the sum is 43.

The square root of 716256745 is about 26762.9733960933. The cubic root of 716256745 is about 894.7250052435.

The spelling of 716256745 in words is "seven hundred sixteen million, two hundred fifty-six thousand, seven hundred forty-five".