3172879 has 2 divisors, whose sum is σ = 3172880. Its totient is φ = 3172878.

The previous prime is 3172847. The next prime is 3172889. The reversal of 3172879 is 9782713.

It is a strong prime.

It is an emirp because it is prime and its reverse (9782713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3172879 - 2⁵ = 3172847 is a prime.

It is a super-2 number, since 2×3172879² = 20134322297282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3172889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1586439 + 1586440.

It is an arithmetic number, because the mean of its divisors is an integer number (1586440).

Almost surely, 2^3172879 is an apocalyptic number.

3172879 is a deficient number, since it is larger than the sum of its proper divisors (1).

3172879 is an equidigital number, since it uses as much as digits as its factorization.

3172879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 37.

The square root of 3172879 is about 1781.2577017377. The cubic root of 3172879 is about 146.9437673452.

The spelling of 3172879 in words is "three million, one hundred seventy-two thousand, eight hundred seventy-nine".