2308919 has 2 divisors, whose sum is σ = 2308920. Its totient is φ = 2308918.

The previous prime is 2308913. The next prime is 2308931. The reversal of 2308919 is 9198032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2308919 - 2⁴ = 2308903 is a prime.

It is a super-2 number, since 2×2308919² = 10662213897122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2308913) 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, 1154459 + 1154460.

It is an arithmetic number, because the mean of its divisors is an integer number (1154460).

2^2308919 is an apocalyptic number.

2308919 is a deficient number, since it is larger than the sum of its proper divisors (1).

2308919 is an equidigital number, since it uses as much as digits as its factorization.

2308919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 2308919 is about 1519.5127508514. The cubic root of 2308919 is about 132.1710172411.

The spelling of 2308919 in words is "two million, three hundred eight thousand, nine hundred nineteen".