2812913 has 4 divisors (see below), whose sum is σ = 2909940. Its totient is φ = 2715888.

The previous prime is 2812907. The next prime is 2812919. The reversal of 2812913 is 3192182.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2812907) and next prime (2812919).

It can be written as a sum of positive squares in 2 ways, for example, as 719104 + 2093809 = 848^2 + 1447^2 .

It is a cyclic number.

It is not a de Polignac number, because 2812913 - 2⁴ = 2812897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2812919) 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, 48470 + ... + 48527.

It is an arithmetic number, because the mean of its divisors is an integer number (727485).

2^2812913 is an apocalyptic number.

It is an amenable number.

2812913 is a deficient number, since it is larger than the sum of its proper divisors (97027).

2812913 is an equidigital number, since it uses as much as digits as its factorization.

2812913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97026.

The product of its digits is 864, while the sum is 26.

The square root of 2812913 is about 1677.1741114148. The cubic root of 2812913 is about 141.1623132896.

The spelling of 2812913 in words is "two million, eight hundred twelve thousand, nine hundred thirteen".