75706715 has 12 divisors (see below), whose sum is σ = 105680736. Its totient is φ = 51913008.

The previous prime is 75706711. The next prime is 75706747. The reversal of 75706715 is 51760757.

It is not a de Polignac number, because 75706715 - 2² = 75706711 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (75706711) 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, 154259 + ... + 154748.

It is an arithmetic number, because the mean of its divisors is an integer number (8806728).

Almost surely, 2^75706715 is an apocalyptic number.

75706715 is a deficient number, since it is larger than the sum of its proper divisors (29974021).

75706715 is a wasteful number, since it uses less digits than its factorization.

75706715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309026 (or 309019 counting only the distinct ones).

The product of its (nonzero) digits is 51450, while the sum is 38.

The square root of 75706715 is about 8700.9605791545. The cubic root of 75706715 is about 423.0367860673.

The spelling of 75706715 in words is "seventy-five million, seven hundred six thousand, seven hundred fifteen".