75047715 has 20 divisors (see below), whose sum is σ = 134530704. Its totient is φ = 40025232.

The previous prime is 75047677. The next prime is 75047717. The reversal of 75047715 is 51774057.

It is not a de Polignac number, because 75047715 - 2¹⁷ = 74916643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75047715.

It is not an unprimeable number, because it can be changed into a prime (75047717) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 92247 + ... + 93056.

Almost surely, 2^75047715 is an apocalyptic number.

75047715 is a deficient number, since it is larger than the sum of its proper divisors (59482989).

75047715 is a wasteful number, since it uses less digits than its factorization.

75047715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185320 (or 185311 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 36.

The square root of 75047715 is about 8663.0084266379. The cubic root of 75047715 is about 421.8057456690.

The spelling of 75047715 in words is "seventy-five million, forty-seven thousand, seven hundred fifteen".