740247777 has 6 divisors (see below), whose sum is σ = 1069246802. Its totient is φ = 493498512.

The previous prime is 740247751. The next prime is 740247793. The reversal of 740247777 is 777742047.

It can be written as a sum of positive squares in only one way, i.e., 407878416 + 332369361 = 20196^2 + 18231^2 .

It is not a de Polignac number, because 740247777 - 2¹⁵ = 740215009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740247727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41124868 + ... + 41124885.

Almost surely, 2^740247777 is an apocalyptic number.

It is an amenable number.

740247777 is a deficient number, since it is larger than the sum of its proper divisors (328999025).

740247777 is a wasteful number, since it uses less digits than its factorization.

740247777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82249759 (or 82249756 counting only the distinct ones).

The product of its (nonzero) digits is 537824, while the sum is 45.

The square root of 740247777 is about 27207.4948681425. The cubic root of 740247777 is about 904.6051112368.

The spelling of 740247777 in words is "seven hundred forty million, two hundred forty-seven thousand, seven hundred seventy-seven".