2861625 has 32 divisors (see below), whose sum is σ = 5136768. Its totient is φ = 1406400.

The previous prime is 2861623. The next prime is 2861657. The reversal of 2861625 is 5261682.

It is not a de Polignac number, because 2861625 - 2¹ = 2861623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2861592 and 2861601.

It is not an unprimeable number, because it can be changed into a prime (2861623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4582 + ... + 5168.

It is an arithmetic number, because the mean of its divisors is an integer number (160524).

2^2861625 is an apocalyptic number.

2861625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2861625 is a deficient number, since it is larger than the sum of its proper divisors (2275143).

2861625 is a wasteful number, since it uses less digits than its factorization.

2861625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618 (or 608 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 2861625 is about 1691.6338256254. The cubic root of 2861625 is about 141.9725034375.

It can be divided in two parts, 2861 and 625, that added together give a triangular number (3486 = T₈₃).

The spelling of 2861625 in words is "two million, eight hundred sixty-one thousand, six hundred twenty-five".