2812949 has 4 divisors (see below), whose sum is σ = 2852640. Its totient is φ = 2773260.

The previous prime is 2812937. The next prime is 2812961. The reversal of 2812949 is 9492182.

2812949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (2812937) and next prime (2812961).

It is a de Polignac number, because none of the positive numbers 2^k-2812949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2812919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19739 + ... + 19880.

It is an arithmetic number, because the mean of its divisors is an integer number (713160).

2^2812949 is an apocalyptic number.

It is an amenable number.

2812949 is a deficient number, since it is larger than the sum of its proper divisors (39691).

2812949 is an equidigital number, since it uses as much as digits as its factorization.

2812949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39690.

The product of its digits is 10368, while the sum is 35.

The square root of 2812949 is about 1677.1848437188. The cubic root of 2812949 is about 141.1629154912.

The spelling of 2812949 in words is "two million, eight hundred twelve thousand, nine hundred forty-nine".