2689537 has 2 divisors, whose sum is σ = 2689538. Its totient is φ = 2689536.

The previous prime is 2689523. The next prime is 2689543. The reversal of 2689537 is 7359862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1640961 + 1048576 = 1281^2 + 1024^2 .

It is a cyclic number.

It is not a de Polignac number, because 2689537 - 2¹⁹ = 2165249 is a prime.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2689537.

It is not a weakly prime, because it can be changed into another prime (2689637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1344768 + 1344769.

It is an arithmetic number, because the mean of its divisors is an integer number (1344769).

2^2689537 is an apocalyptic number.

It is an amenable number.

2689537 is a deficient number, since it is larger than the sum of its proper divisors (1).

2689537 is an equidigital number, since it uses as much as digits as its factorization.

2689537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 2689537 is about 1639.9807925704. The cubic root of 2689537 is about 139.0675620006.

The spelling of 2689537 in words is "two million, six hundred eighty-nine thousand, five hundred thirty-seven".