2498691 has 16 divisors (see below), whose sum is σ = 3637760. Its totient is φ = 1516320.

The previous prime is 2498689. The next prime is 2498701. The reversal of 2498691 is 1968942.

It is not a de Polignac number, because 2498691 - 2¹ = 2498689 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 (2498641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2676 + ... + 3486.

It is an arithmetic number, because the mean of its divisors is an integer number (227360).

2^2498691 is an apocalyptic number.

2498691 is a deficient number, since it is larger than the sum of its proper divisors (1139069).

2498691 is a wasteful number, since it uses less digits than its factorization.

2498691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906.

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

The square root of 2498691 is about 1580.7248337393. The cubic root of 2498691 is about 135.6971888765.

Adding to 2498691 its sum of digits (39), we get a triangular number (2498730 = T₂₂₃₅).

The spelling of 2498691 in words is "two million, four hundred ninety-eight thousand, six hundred ninety-one".