75687065 has 8 divisors (see below), whose sum is σ = 92104128. Its totient is φ = 59696560.

The previous prime is 75687049. The next prime is 75687067. The reversal of 75687065 is 56078657.

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

It is not a de Polignac number, because 75687065 - 2⁴ = 75687049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75687067) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 106247 + ... + 106956.

It is an arithmetic number, because the mean of its divisors is an integer number (11513016).

Almost surely, 2^75687065 is an apocalyptic number.

It is an amenable number.

75687065 is a deficient number, since it is larger than the sum of its proper divisors (16417063).

75687065 is a wasteful number, since it uses less digits than its factorization.

75687065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213279.

The product of its (nonzero) digits is 352800, while the sum is 44.

The square root of 75687065 is about 8699.8313202039. The cubic root of 75687065 is about 423.0001825677. Note that the first 3 decimals are identical.

The spelling of 75687065 in words is "seventy-five million, six hundred eighty-seven thousand, sixty-five".