2497985 has 16 divisors (see below), whose sum is σ = 3456000. Its totient is φ = 1697856.

The previous prime is 2497967. The next prime is 2497991. The reversal of 2497985 is 5897942.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2497985 - 2¹⁴ = 2481601 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4976 + ... + 5454.

It is an arithmetic number, because the mean of its divisors is an integer number (216000).

2^2497985 is an apocalyptic number.

It is an amenable number.

2497985 is a deficient number, since it is larger than the sum of its proper divisors (958015).

2497985 is a wasteful number, since it uses less digits than its factorization.

2497985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640.

The product of its digits is 181440, while the sum is 44.

The square root of 2497985 is about 1580.5015026883. The cubic root of 2497985 is about 135.6844073521.

It can be divided in two parts, 249798 and 5, that multiplied together give a triangular number (1248990 = T₁₅₈₀).

The spelling of 2497985 in words is "two million, four hundred ninety-seven thousand, nine hundred eighty-five".