749694664 has 8 divisors (see below), whose sum is σ = 1405677510. Its totient is φ = 374847328.

The previous prime is 749694653. The next prime is 749694677. The reversal of 749694664 is 466496947.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 743652900 + 6041764 = 27270^2 + 2458^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 46855909 + ... + 46855924.

Almost surely, 2^749694664 is an apocalyptic number.

It is an amenable number.

749694664 is a deficient number, since it is larger than the sum of its proper divisors (655982846).

749694664 is a wasteful number, since it uses less digits than its factorization.

749694664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93711839 (or 93711835 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 55.

The square root of 749694664 is about 27380.5526606020. The cubic root of 749694664 is about 908.4369836063.

The spelling of 749694664 in words is "seven hundred forty-nine million, six hundred ninety-four thousand, six hundred sixty-four".