749561771 has 12 divisors (see below), whose sum is σ = 876989232. Its totient is φ = 638760528.

The previous prime is 749561719. The next prime is 749561821. The reversal of 749561771 is 177165947.

It is not a de Polignac number, because 749561771 - 2⁶ = 749561707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (749561711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35735 + ... + 52688.

It is an arithmetic number, because the mean of its divisors is an integer number (73082436).

Almost surely, 2^749561771 is an apocalyptic number.

749561771 is a deficient number, since it is larger than the sum of its proper divisors (127427461).

749561771 is a wasteful number, since it uses less digits than its factorization.

749561771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88610 (or 88603 counting only the distinct ones).

The product of its digits is 370440, while the sum is 47.

The square root of 749561771 is about 27378.1257758817. The cubic root of 749561771 is about 908.3833030633.

The spelling of 749561771 in words is "seven hundred forty-nine million, five hundred sixty-one thousand, seven hundred seventy-one".