2486991 has 16 divisors (see below), whose sum is σ = 3656576. Its totient is φ = 1493856.

The previous prime is 2486987. The next prime is 2486993. The reversal of 2486991 is 1996842.

It is not a de Polignac number, because 2486991 - 2² = 2486987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2486993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936 + ... + 2418.

It is an arithmetic number, because the mean of its divisors is an integer number (228536).

2^2486991 is an apocalyptic number.

2486991 is a deficient number, since it is larger than the sum of its proper divisors (1169585).

2486991 is a wasteful number, since it uses less digits than its factorization.

2486991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542.

The product of its digits is 31104, while the sum is 39.

The square root of 2486991 is about 1577.0196574552. The cubic root of 2486991 is about 135.4850589227.

The spelling of 2486991 in words is "two million, four hundred eighty-six thousand, nine hundred ninety-one".