3109172723 has 8 divisors (see below), whose sum is σ = 3148972848. Its totient is φ = 3069571744.

The previous prime is 3109172707. The next prime is 3109172741. The reversal of 3109172723 is 3272719013.

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 3109172723 - 2⁴ = 3109172707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3109172783) 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, 18236 + ... + 80937.

It is an arithmetic number, because the mean of its divisors is an integer number (393621606).

Almost surely, 2^3109172723 is an apocalyptic number.

3109172723 is a deficient number, since it is larger than the sum of its proper divisors (39800125).

3109172723 is a wasteful number, since it uses less digits than its factorization.

3109172723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99573.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 3109172723 is about 55759.9562679169. The cubic root of 3109172723 is about 1459.5364643131.

The spelling of 3109172723 in words is "three billion, one hundred nine million, one hundred seventy-two thousand, seven hundred twenty-three".