2656319 has 2 divisors, whose sum is σ = 2656320. Its totient is φ = 2656318.

The previous prime is 2656309. The next prime is 2656321. The reversal of 2656319 is 9136562.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2656319 is a prime.

It is a super-2 number, since 2×2656319² = 14112061259522, which contains 22 as substring.

Together with 2656321, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2656309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328159 + 1328160.

It is an arithmetic number, because the mean of its divisors is an integer number (1328160).

2^2656319 is an apocalyptic number.

2656319 is a deficient number, since it is larger than the sum of its proper divisors (1).

2656319 is an equidigital number, since it uses as much as digits as its factorization.

2656319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 32.

The square root of 2656319 is about 1629.8217693969. The cubic root of 2656319 is about 138.4926555816.

The spelling of 2656319 in words is "two million, six hundred fifty-six thousand, three hundred nineteen".