75099691 has 8 divisors (see below), whose sum is σ = 76294080. Its totient is φ = 73911552.

The previous prime is 75099683. The next prime is 75099707. The reversal of 75099691 is 19699057.

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 75099691 - 2³ = 75099683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75099641) 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, 26541 + ... + 29233.

It is an arithmetic number, because the mean of its divisors is an integer number (9536760).

Almost surely, 2^75099691 is an apocalyptic number.

75099691 is a deficient number, since it is larger than the sum of its proper divisors (1194389).

75099691 is a wasteful number, since it uses less digits than its factorization.

75099691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125.

The product of its (nonzero) digits is 153090, while the sum is 46.

The square root of 75099691 is about 8666.0077890572. The cubic root of 75099691 is about 421.9031002481.

The spelling of 75099691 in words is "seventy-five million, ninety-nine thousand, six hundred ninety-one".