3172889 has 2 divisors, whose sum is σ = 3172890. Its totient is φ = 3172888.

The previous prime is 3172879. The next prime is 3172901. The reversal of 3172889 is 9882713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3168400 + 4489 = 1780^2 + 67^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3172889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3172879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1586444 + 1586445.

It is an arithmetic number, because the mean of its divisors is an integer number (1586445).

Almost surely, 2^3172889 is an apocalyptic number.

It is an amenable number.

3172889 is a deficient number, since it is larger than the sum of its proper divisors (1).

3172889 is an equidigital number, since it uses as much as digits as its factorization.

3172889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 38.

The square root of 3172889 is about 1781.2605087409. The cubic root of 3172889 is about 146.9439217198.

The spelling of 3172889 in words is "three million, one hundred seventy-two thousand, eight hundred eighty-nine".