2644479 has 6 divisors (see below), whose sum is σ = 3819816. Its totient is φ = 1762980.

The previous prime is 2644451. The next prime is 2644489. The reversal of 2644479 is 9744462.

2644479 is a `hidden beast` number, since 2 + 644 + 4 + 7 + 9 = 666.

It is not a de Polignac number, because 2644479 - 2¹² = 2640383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2644409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146907 + ... + 146924.

It is an arithmetic number, because the mean of its divisors is an integer number (636636).

2^2644479 is an apocalyptic number.

2644479 is a deficient number, since it is larger than the sum of its proper divisors (1175337).

2644479 is a wasteful number, since it uses less digits than its factorization.

2644479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293837 (or 293834 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 2644479 is about 1626.1854137828. The cubic root of 2644479 is about 138.2865815143.

The spelling of 2644479 in words is "two million, six hundred forty-four thousand, four hundred seventy-nine".