2915897 has 2 divisors, whose sum is σ = 2915898. Its totient is φ = 2915896.

The previous prime is 2915893. The next prime is 2915903. The reversal of 2915897 is 7985192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2725801 + 190096 = 1651^2 + 436^2 .

It is a cyclic number.

It is not a de Polignac number, because 2915897 - 2² = 2915893 is a prime.

It is not a weakly prime, because it can be changed into another prime (2915893) 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, 1457948 + 1457949.

It is an arithmetic number, because the mean of its divisors is an integer number (1457949).

2^2915897 is an apocalyptic number.

It is an amenable number.

2915897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2915897 is an equidigital number, since it uses as much as digits as its factorization.

2915897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 41.

The square root of 2915897 is about 1707.5997774654. The cubic root of 2915897 is about 142.8644125348.

The spelling of 2915897 in words is "two million, nine hundred fifteen thousand, eight hundred ninety-seven".