764894742 has 24 divisors (see below), whose sum is σ = 1614546936. Its totient is φ = 241545024.

The previous prime is 764894699. The next prime is 764894773. The reversal of 764894742 is 247498467.

It is a happy number.

It is a super-4 number, since 4×764894742⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174403 + ... + 178734.

It is an arithmetic number, because the mean of its divisors is an integer number (67272789).

Almost surely, 2^764894742 is an apocalyptic number.

764894742 is an abundant number, since it is smaller than the sum of its proper divisors (849652194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

764894742 is a wasteful number, since it uses less digits than its factorization.

764894742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353180 (or 353161 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 51.

The square root of 764894742 is about 27656.7305009106. The cubic root of 764894742 is about 914.5354792262.

The spelling of 764894742 in words is "seven hundred sixty-four million, eight hundred ninety-four thousand, seven hundred forty-two".