3391957 has 2 divisors, whose sum is σ = 3391958. Its totient is φ = 3391956.

The previous prime is 3391939. The next prime is 3391963. The reversal of 3391957 is 7591933.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3261636 + 130321 = 1806^2 + 361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3391957 is a prime.

3391957 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3391907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1695978 + 1695979.

It is an arithmetic number, because the mean of its divisors is an integer number (1695979).

Almost surely, 2^3391957 is an apocalyptic number.

It is an amenable number.

3391957 is a deficient number, since it is larger than the sum of its proper divisors (1).

3391957 is an equidigital number, since it uses as much as digits as its factorization.

3391957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25515, while the sum is 37.

The square root of 3391957 is about 1841.7266355244. The cubic root of 3391957 is about 150.2507952594.

The spelling of 3391957 in words is "three million, three hundred ninety-one thousand, nine hundred fifty-seven".