2813749 has 8 divisors (see below), whose sum is σ = 2901888. Its totient is φ = 2726880.

The previous prime is 2813737. The next prime is 2813807. The reversal of 2813749 is 9473182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2813749 - 2¹⁹ = 2289461 is a prime.

It is a Duffinian number.

2813749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2813719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5929 + ... + 6385.

It is an arithmetic number, because the mean of its divisors is an integer number (362736).

2^2813749 is an apocalyptic number.

It is an amenable number.

2813749 is a deficient number, since it is larger than the sum of its proper divisors (88139).

2813749 is a wasteful number, since it uses less digits than its factorization.

2813749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635.

The product of its digits is 12096, while the sum is 34.

The square root of 2813749 is about 1677.4233216454. The cubic root of 2813749 is about 141.1762964220.

The spelling of 2813749 in words is "two million, eight hundred thirteen thousand, seven hundred forty-nine".