2687725 has 6 divisors (see below), whose sum is σ = 3332810. Its totient is φ = 2150160.

The previous prime is 2687723. The next prime is 2687747. The reversal of 2687725 is 5277862.

It can be written as a sum of positive squares in 3 ways, for example, as 66564 + 2621161 = 258^2 + 1619^2 .

It is not a de Polignac number, because 2687725 - 2¹ = 2687723 is a prime.

It is a d-powerful number, because it can be written as 2¹⁴ + 6² + 8⁷ + 7³ + 7⁶ + 2¹⁶ + 5⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53730 + ... + 53779.

2^2687725 is an apocalyptic number.

2687725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2687725 is a deficient number, since it is larger than the sum of its proper divisors (645085).

2687725 is a wasteful number, since it uses less digits than its factorization.

2687725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107519 (or 107514 counting only the distinct ones).

The product of its digits is 47040, while the sum is 37.

The square root of 2687725 is about 1639.4282539959. The cubic root of 2687725 is about 139.0363240299.

The spelling of 2687725 in words is "two million, six hundred eighty-seven thousand, seven hundred twenty-five".