2657489 has 8 divisors (see below), whose sum is σ = 2790720. Its totient is φ = 2525776.

The previous prime is 2657483. The next prime is 2657513. The reversal of 2657489 is 9847562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2657489 - 2²⁰ = 1608913 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (2657483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4967 + ... + 5475.

It is an arithmetic number, because the mean of its divisors is an integer number (348840).

2^2657489 is an apocalyptic number.

It is an amenable number.

2657489 is a deficient number, since it is larger than the sum of its proper divisors (133231).

2657489 is a wasteful number, since it uses less digits than its factorization.

2657489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759.

The product of its digits is 120960, while the sum is 41.

The square root of 2657489 is about 1630.1806648344. The cubic root of 2657489 is about 138.5129860492.

The spelling of 2657489 in words is "two million, six hundred fifty-seven thousand, four hundred eighty-nine".