2644966 has 4 divisors (see below), whose sum is σ = 3967452. Its totient is φ = 1322482.

The previous prime is 2644927. The next prime is 2644981. The reversal of 2644966 is 6694462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6694462 = 2 ⋅3347231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661240 + ... + 661243.

It is an arithmetic number, because the mean of its divisors is an integer number (991863).

2^2644966 is an apocalyptic number.

2644966 is a deficient number, since it is larger than the sum of its proper divisors (1322486).

2644966 is a wasteful number, since it uses less digits than its factorization.

2644966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322485.

The product of its digits is 62208, while the sum is 37.

The square root of 2644966 is about 1626.3351438126. The cubic root of 2644966 is about 138.2950698191.

The spelling of 2644966 in words is "two million, six hundred forty-four thousand, nine hundred sixty-six".