75030906 has 8 divisors (see below), whose sum is σ = 150061824. Its totient is φ = 25010300.

The previous prime is 75030889. The next prime is 75030919. The reversal of 75030906 is 60903057.

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

75030906 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6252570 + ... + 6252581.

It is an arithmetic number, because the mean of its divisors is an integer number (18757728).

Almost surely, 2^75030906 is an apocalyptic number.

75030906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75030906 is a wasteful number, since it uses less digits than its factorization.

75030906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12505156.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 75030906 is about 8662.0382127996. The cubic root of 75030906 is about 421.7742516513.

The spelling of 75030906 in words is "seventy-five million, thirty thousand, nine hundred six".