3123997 has 2 divisors, whose sum is σ = 3123998. Its totient is φ = 3123996.

The previous prime is 3123983. The next prime is 3124001. The reversal of 3123997 is 7993213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2524921 + 599076 = 1589^2 + 774^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3123997 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561998 + 1561999.

It is an arithmetic number, because the mean of its divisors is an integer number (1561999).

Almost surely, 2^3123997 is an apocalyptic number.

It is an amenable number.

3123997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123997 is an equidigital number, since it uses as much as digits as its factorization.

3123997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10206, while the sum is 34.

The square root of 3123997 is about 1767.4832389587. The cubic root of 3123997 is about 146.1852436914.

The spelling of 3123997 in words is "three million, one hundred twenty-three thousand, nine hundred ninety-seven".