2813481 has 16 divisors (see below), whose sum is σ = 4547520. Its totient is φ = 1704960.

The previous prime is 2813479. The next prime is 2813497. The reversal of 2813481 is 1843182.

It is not a de Polignac number, because 2813481 - 2¹ = 2813479 is a prime.

It is a super-2 number, since 2×2813481² = 15831350674722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2813401) 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, 4440 + ... + 5033.

It is an arithmetic number, because the mean of its divisors is an integer number (284220).

2^2813481 is an apocalyptic number.

It is an amenable number.

2813481 is a deficient number, since it is larger than the sum of its proper divisors (1734039).

2813481 is a wasteful number, since it uses less digits than its factorization.

2813481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9493 (or 9487 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 2813481 is about 1677.3434353167. The cubic root of 2813481 is about 141.1718140927.

Subtracting from 2813481 its reverse (1843182), we obtain a cube (970299 = 99³).

The spelling of 2813481 in words is "two million, eight hundred thirteen thousand, four hundred eighty-one".