2813966 has 4 divisors (see below), whose sum is σ = 4220952. Its totient is φ = 1406982.

The previous prime is 2813947. The next prime is 2813969. The reversal of 2813966 is 6693182.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6693182 = 2 ⋅3346591.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 703490 + ... + 703493.

It is an arithmetic number, because the mean of its divisors is an integer number (1055238).

2^2813966 is an apocalyptic number.

2813966 is a deficient number, since it is larger than the sum of its proper divisors (1406986).

2813966 is a wasteful number, since it uses less digits than its factorization.

2813966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406985.

The product of its digits is 15552, while the sum is 35.

The square root of 2813966 is about 1677.4880029377. The cubic root of 2813966 is about 141.1799255622.

The spelling of 2813966 in words is "two million, eight hundred thirteen thousand, nine hundred sixty-six".