2653779 has 4 divisors (see below), whose sum is σ = 3538376. Its totient is φ = 1769184.

The previous prime is 2653753. The next prime is 2653789. The reversal of 2653779 is 9773562.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2653779 - 2²¹ = 556627 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 6⁷ + 5⁹ + 3¹¹ + 7⁶ + 7⁶ + 9² .

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2653789) 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, 442294 + ... + 442299.

It is an arithmetic number, because the mean of its divisors is an integer number (884594).

2^2653779 is an apocalyptic number.

2653779 is a deficient number, since it is larger than the sum of its proper divisors (884597).

2653779 is an equidigital number, since it uses as much as digits as its factorization.

2653779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884596.

The product of its digits is 79380, while the sum is 39.

The square root of 2653779 is about 1629.0423567237. The cubic root of 2653779 is about 138.4484987958.

The spelling of 2653779 in words is "two million, six hundred fifty-three thousand, seven hundred seventy-nine".