75000099 has 4 divisors (see below), whose sum is σ = 100000136. Its totient is φ = 50000064.

The previous prime is 75000097. The next prime is 75000103. The reversal of 75000099 is 99000057.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 75000099 - 2¹ = 75000097 is a prime.

It is a Duffinian number.

75000099 is a modest number, since divided by 99 gives 75 as remainder.

It is not an unprimeable number, because it can be changed into a prime (75000097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12500014 + ... + 12500019.

It is an arithmetic number, because the mean of its divisors is an integer number (25000034).

Almost surely, 2^75000099 is an apocalyptic number.

75000099 is a deficient number, since it is larger than the sum of its proper divisors (25000037).

75000099 is a wasteful number, since it uses less digits than its factorization.

75000099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25000036.

The product of its (nonzero) digits is 2835, while the sum is 30.

The square root of 75000099 is about 8660.2597536102. The cubic root of 75000099 is about 421.7165182060.

The spelling of 75000099 in words is "seventy-five million, ninety-nine", and thus it is an aban number and an uban number.