2506986 has 48 divisors (see below), whose sum is σ = 5765760. Its totient is φ = 786240.

The previous prime is 2506981. The next prime is 2506991. The reversal of 2506986 is 6896052.

It is an interprime number because it is at equal distance from previous prime (2506981) and next prime (2506991).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2506986.

It is not an unprimeable number, because it can be changed into a prime (2506981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31695 + ... + 31773.

It is an arithmetic number, because the mean of its divisors is an integer number (120120).

2^2506986 is an apocalyptic number.

2506986 is an abundant number, since it is smaller than the sum of its proper divisors (3258774).

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

2506986 is a wasteful number, since it uses less digits than its factorization.

2506986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 2506986 is about 1583.3464560860. The cubic root of 2506986 is about 135.8471827331.

The spelling of 2506986 in words is "two million, five hundred six thousand, nine hundred eighty-six".