2813961 has 16 divisors (see below), whose sum is σ = 3907008. Its totient is φ = 1800000.

The previous prime is 2813947. The next prime is 2813969. The reversal of 2813961 is 1693182.

It is not a de Polignac number, because 2813961 - 2⁶ = 2813897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2813969) 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, 11086 + ... + 11336.

It is an arithmetic number, because the mean of its divisors is an integer number (244188).

2^2813961 is an apocalyptic number.

It is an amenable number.

2813961 is a deficient number, since it is larger than the sum of its proper divisors (1093047).

2813961 is a wasteful number, since it uses less digits than its factorization.

2813961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392.

The product of its digits is 2592, while the sum is 30.

The square root of 2813961 is about 1677.4865126134. The cubic root of 2813961 is about 141.1798419436.

The spelling of 2813961 in words is "two million, eight hundred thirteen thousand, nine hundred sixty-one".