75106939 has 4 divisors (see below), whose sum is σ = 76853656. Its totient is φ = 73360224.

The previous prime is 75106931. The next prime is 75106951. The reversal of 75106939 is 93960157.

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

It is a cyclic number.

It is not a de Polignac number, because 75106939 - 2³ = 75106931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75106931) 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, 873294 + ... + 873379.

It is an arithmetic number, because the mean of its divisors is an integer number (19213414).

Almost surely, 2^75106939 is an apocalyptic number.

75106939 is a deficient number, since it is larger than the sum of its proper divisors (1746717).

75106939 is a wasteful number, since it uses less digits than its factorization.

75106939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746716.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 75106939 is about 8666.4259646062. The cubic root of 75106939 is about 421.9166726754.

The spelling of 75106939 in words is "seventy-five million, one hundred six thousand, nine hundred thirty-nine".