75680287 has 8 divisors (see below), whose sum is σ = 79836800. Its totient is φ = 71541144.

The previous prime is 75680279. The next prime is 75680291. The reversal of 75680287 is 78208657.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75680287 - 2³ = 75680279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75683287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5164 + ... + 13342.

It is an arithmetic number, because the mean of its divisors is an integer number (9979600).

Almost surely, 2^75680287 is an apocalyptic number.

75680287 is a deficient number, since it is larger than the sum of its proper divisors (4156513).

75680287 is a wasteful number, since it uses less digits than its factorization.

75680287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8685.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 75680287 is about 8699.4417636996. The cubic root of 75680287 is about 422.9875552192.

The spelling of 75680287 in words is "seventy-five million, six hundred eighty thousand, two hundred eighty-seven".