2587969 has 2 divisors, whose sum is σ = 2587970. Its totient is φ = 2587968.

The previous prime is 2587967. The next prime is 2587979. The reversal of 2587969 is 9697852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1404225 + 1183744 = 1185^2 + 1088^2 .

It is a cyclic number.

It is not a de Polignac number, because 2587969 - 2¹ = 2587967 is a prime.

It is a super-2 number, since 2×2587969² = 13395167089922, which contains 22 as substring.

Together with 2587967, it forms a pair of twin primes.

2587969 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2587967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1293984 + 1293985.

It is an arithmetic number, because the mean of its divisors is an integer number (1293985).

2^2587969 is an apocalyptic number.

It is an amenable number.

2587969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2587969 is an equidigital number, since it uses as much as digits as its factorization.

2587969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 46.

The square root of 2587969 is about 1608.7165691942. The cubic root of 2587969 is about 137.2944631618.

The spelling of 2587969 in words is "two million, five hundred eighty-seven thousand, nine hundred sixty-nine".