75663964 has 12 divisors (see below), whose sum is σ = 135990904. Its totient is φ = 36809424.

The previous prime is 75663953. The next prime is 75664007. The reversal of 75663964 is 46936657.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255474 + ... + 255769.

Almost surely, 2^75663964 is an apocalyptic number.

75663964 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

75663964 is a deficient number, since it is larger than the sum of its proper divisors (60326940).

75663964 is a wasteful number, since it uses less digits than its factorization.

75663964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511284 (or 511282 counting only the distinct ones).

The product of its digits is 816480, while the sum is 46.

The square root of 75663964 is about 8698.5035494618. The cubic root of 75663964 is about 422.9571425337.

The spelling of 75663964 in words is "seventy-five million, six hundred sixty-three thousand, nine hundred sixty-four".