2686425 has 72 divisors (see below), whose sum is σ = 5597856. Its totient is φ = 1128960.

The previous prime is 2686393. The next prime is 2686451. The reversal of 2686425 is 5246862.

It is not a de Polignac number, because 2686425 - 2⁵ = 2686393 is a prime.

It is a d-powerful number, because it can be written as 2²⁰ + 6⁶ + 8³ + 6⁷ + 4⁹ + 2²⁰ + 5² .

2686425 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 62454 + ... + 62496.

It is an arithmetic number, because the mean of its divisors is an integer number (77748).

2^2686425 is an apocalyptic number.

2686425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2686425 is an abundant number, since it is smaller than the sum of its proper divisors (2911431).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2686425 is a wasteful number, since it uses less digits than its factorization.

2686425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 75 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 2686425 is about 1639.0317263555. The cubic root of 2686425 is about 139.0139040316.

The spelling of 2686425 in words is "two million, six hundred eighty-six thousand, four hundred twenty-five".