3918311 has 2 divisors, whose sum is σ = 3918312. Its totient is φ = 3918310.

The previous prime is 3918301. The next prime is 3918323. The reversal of 3918311 is 1138193.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3918311 is a prime.

It is a super-2 number, since 2×3918311² = 30706322185442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3918301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1959155 + 1959156.

It is an arithmetic number, because the mean of its divisors is an integer number (1959156).

Almost surely, 2^3918311 is an apocalyptic number.

3918311 is a deficient number, since it is larger than the sum of its proper divisors (1).

3918311 is an equidigital number, since it uses as much as digits as its factorization.

3918311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 26.

The square root of 3918311 is about 1979.4724044553. The cubic root of 3918311 is about 157.6520543819.

The spelling of 3918311 in words is "three million, nine hundred eighteen thousand, three hundred eleven".