2813761 has 4 divisors (see below), whose sum is σ = 2817472. Its totient is φ = 2810052.

The previous prime is 2813737. The next prime is 2813807. The reversal of 2813761 is 1673182.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2813761 - 2⁷ = 2813633 is a prime.

It is a Duffinian number.

2813761 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2813711) 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, 261 + ... + 2386.

It is an arithmetic number, because the mean of its divisors is an integer number (704368).

2^2813761 is an apocalyptic number.

It is an amenable number.

2813761 is a deficient number, since it is larger than the sum of its proper divisors (3711).

2813761 is a wasteful number, since it uses less digits than its factorization.

2813761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3710.

The product of its digits is 2016, while the sum is 28.

The square root of 2813761 is about 1677.4268985562. The cubic root of 2813761 is about 141.1764971167.

The spelling of 2813761 in words is "two million, eight hundred thirteen thousand, seven hundred sixty-one".