2605947 has 16 divisors (see below), whose sum is σ = 3781152. Its totient is φ = 1589760.

The previous prime is 2605943. The next prime is 2605949. The reversal of 2605947 is 7495062.

It is not a de Polignac number, because 2605947 - 2² = 2605943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2605943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1197 + ... + 2577.

It is an arithmetic number, because the mean of its divisors is an integer number (236322).

2^2605947 is an apocalyptic number.

2605947 is a deficient number, since it is larger than the sum of its proper divisors (1175205).

2605947 is a wasteful number, since it uses less digits than its factorization.

2605947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 2605947 is about 1614.2945827822. The cubic root of 2605947 is about 137.6116470615.

It can be divided in two parts, 26059 and 47, that added together give a triangular number (26106 = T₂₂₈).

The spelling of 2605947 in words is "two million, six hundred five thousand, nine hundred forty-seven".