75686680 has 16 divisors (see below), whose sum is σ = 170295120. Its totient is φ = 30274656.

The previous prime is 75686659. The next prime is 75686683. The reversal of 75686680 is 8668657.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 75686680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75686683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946044 + ... + 946123.

It is an arithmetic number, because the mean of its divisors is an integer number (10643445).

Almost surely, 2^75686680 is an apocalyptic number.

It is an amenable number.

75686680 is an abundant number, since it is smaller than the sum of its proper divisors (94608440).

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

75686680 is a wasteful number, since it uses less digits than its factorization.

75686680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892178 (or 1892174 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 75686680 is about 8699.8091933099. The cubic root of 75686680 is about 422.9994653366. Note that the first 3 decimals are identical.

The spelling of 75686680 in words is "seventy-five million, six hundred eighty-six thousand, six hundred eighty".