3157879 has 2 divisors, whose sum is σ = 3157880. Its totient is φ = 3157878.

The previous prime is 3157873. The next prime is 3157919. The reversal of 3157879 is 9787513.

It is an a-pointer prime, because the next prime (3157919) can be obtained adding 3157879 to its sum of digits (40).

It is a weak prime.

It is an emirp because it is prime and its reverse (9787513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3157879 - 2⁷ = 3157751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3157873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1578939 + 1578940.

It is an arithmetic number, because the mean of its divisors is an integer number (1578940).

Almost surely, 2^3157879 is an apocalyptic number.

3157879 is a deficient number, since it is larger than the sum of its proper divisors (1).

3157879 is an equidigital number, since it uses as much as digits as its factorization.

3157879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 40.

The square root of 3157879 is about 1777.0422054639. The cubic root of 3157879 is about 146.7118392766.

The spelling of 3157879 in words is "three million, one hundred fifty-seven thousand, eight hundred seventy-nine".