740612857 has 16 divisors (see below), whose sum is σ = 786557952. Its totient is φ = 695889040.

The previous prime is 740612833. The next prime is 740612861. The reversal of 740612857 is 758216047.

It is a cyclic number.

It is not a de Polignac number, because 740612857 - 2²⁷ = 606395129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740616857) 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, 565998 + ... + 567304.

It is an arithmetic number, because the mean of its divisors is an integer number (49159872).

Almost surely, 2^740612857 is an apocalyptic number.

It is an amenable number.

740612857 is a deficient number, since it is larger than the sum of its proper divisors (45945095).

740612857 is a wasteful number, since it uses less digits than its factorization.

740612857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 740612857 is about 27214.2032218472. The cubic root of 740612857 is about 904.7537997197.

The spelling of 740612857 in words is "seven hundred forty million, six hundred twelve thousand, eight hundred fifty-seven".