2394172689 has 4 divisors (see below), whose sum is σ = 3192230256. Its totient is φ = 1596115124.

The previous prime is 2394172673. The next prime is 2394172699. The reversal of 2394172689 is 9862714932.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2394172689 - 2⁴ = 2394172673 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2394172639) 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, 399028779 + ... + 399028784.

It is an arithmetic number, because the mean of its divisors is an integer number (798057564).

Almost surely, 2^2394172689 is an apocalyptic number.

It is an amenable number.

2394172689 is a deficient number, since it is larger than the sum of its proper divisors (798057567).

2394172689 is an equidigital number, since it uses as much as digits as its factorization.

2394172689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798057566.

The product of its digits is 1306368, while the sum is 51.

The square root of 2394172689 is about 48930.2839660675. The cubic root of 2394172689 is about 1337.7814125187.

The spelling of 2394172689 in words is "two billion, three hundred ninety-four million, one hundred seventy-two thousand, six hundred eighty-nine".