2615969 has 2 divisors, whose sum is σ = 2615970. Its totient is φ = 2615968.

The previous prime is 2615959. The next prime is 2615971. The reversal of 2615969 is 9695162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2608225 + 7744 = 1615^2 + 88^2 .

It is a cyclic number.

It is not a de Polignac number, because 2615969 - 2⁴ = 2615953 is a prime.

It is a super-3 number, since 3×2615969³ = 53705533386401694627, which contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 2615971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2615929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1307984 + 1307985.

It is an arithmetic number, because the mean of its divisors is an integer number (1307985).

2^2615969 is an apocalyptic number.

It is an amenable number.

2615969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2615969 is an equidigital number, since it uses as much as digits as its factorization.

2615969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 38.

The square root of 2615969 is about 1617.3957462538. The cubic root of 2615969 is about 137.7878312171.

The spelling of 2615969 in words is "two million, six hundred fifteen thousand, nine hundred sixty-nine".