75744664 has 8 divisors (see below), whose sum is σ = 142021260. Its totient is φ = 37872328.

The previous prime is 75744653. The next prime is 75744677. The reversal of 75744664 is 46644757.

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

It is a self number, because there is not a number n which added to its sum of digits gives 75744664.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4734034 + ... + 4734049.

Almost surely, 2^75744664 is an apocalyptic number.

It is an amenable number.

75744664 is a deficient number, since it is larger than the sum of its proper divisors (66276596).

75744664 is a wasteful number, since it uses less digits than its factorization.

75744664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9468089 (or 9468085 counting only the distinct ones).

The product of its digits is 564480, while the sum is 43.

The square root of 75744664 is about 8703.1410421755. The cubic root of 75744664 is about 423.1074585360.

The spelling of 75744664 in words is "seventy-five million, seven hundred forty-four thousand, six hundred sixty-four".