2690849 has 4 divisors (see below), whose sum is σ = 3075264. Its totient is φ = 2306436.

The previous prime is 2690827. The next prime is 2690851. The reversal of 2690849 is 9480962.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2690849 - 2⁸ = 2690593 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2690249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192197 + ... + 192210.

It is an arithmetic number, because the mean of its divisors is an integer number (768816).

2^2690849 is an apocalyptic number.

It is an amenable number.

2690849 is a deficient number, since it is larger than the sum of its proper divisors (384415).

2690849 is an equidigital number, since it uses as much as digits as its factorization.

2690849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384414.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 2690849 is about 1640.3807484849. The cubic root of 2690849 is about 139.0901714660.

The spelling of 2690849 in words is "two million, six hundred ninety thousand, eight hundred forty-nine".