75949668 has 36 divisors (see below), whose sum is σ = 192754380. Its totient is φ = 25214976.

The previous prime is 75949667. The next prime is 75949691. The reversal of 75949668 is 86694957.

It can be written as a sum of positive squares in 2 ways, for example, as 43322724 + 32626944 = 6582^2 + 5712^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (75949667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5148 + ... + 13356.

Almost surely, 2^75949668 is an apocalyptic number.

It is an amenable number.

75949668 is an abundant number, since it is smaller than the sum of its proper divisors (116804712).

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

75949668 is a wasteful number, since it uses less digits than its factorization.

75949668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8476 (or 8471 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 75949668 is about 8714.9106707986. The cubic root of 75949668 is about 423.4888301122.

The spelling of 75949668 in words is "seventy-five million, nine hundred forty-nine thousand, six hundred sixty-eight".