75991408 has 10 divisors (see below), whose sum is σ = 147233384. Its totient is φ = 37995696.

The previous prime is 75991367. The next prime is 75991417. The reversal of 75991408 is 80419957.

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, 2374716 + ... + 2374747.

Almost surely, 2^75991408 is an apocalyptic number.

It is an amenable number.

75991408 is a deficient number, since it is larger than the sum of its proper divisors (71241976).

75991408 is a wasteful number, since it uses less digits than its factorization.

75991408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749471 (or 4749465 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 75991408 is about 8717.3050881565. The cubic root of 75991408 is about 423.5663954572.

The spelling of 75991408 in words is "seventy-five million, nine hundred ninety-one thousand, four hundred eight".