3091457 has 2 divisors, whose sum is σ = 3091458. Its totient is φ = 3091456.

The previous prime is 3091427. The next prime is 3091463. The reversal of 3091457 is 7541903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3083536 + 7921 = 1756^2 + 89^2 .

It is an emirp because it is prime and its reverse (7541903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3091457 - 2⁶ = 3091393 is a prime.

It is not a weakly prime, because it can be changed into another prime (3091427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1545728 + 1545729.

It is an arithmetic number, because the mean of its divisors is an integer number (1545729).

Almost surely, 2^3091457 is an apocalyptic number.

It is an amenable number.

3091457 is a deficient number, since it is larger than the sum of its proper divisors (1).

3091457 is an equidigital number, since it uses as much as digits as its factorization.

3091457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 3091457 is about 1758.2539634535. The cubic root of 3091457 is about 145.6759089998.

The spelling of 3091457 in words is "three million, ninety-one thousand, four hundred fifty-seven".