2857479 has 16 divisors (see below), whose sum is σ = 4131072. Its totient is φ = 1749888.

The previous prime is 2857471. The next prime is 2857493. The reversal of 2857479 is 9747582.

2857479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2857479 - 2³ = 2857471 is a prime.

2857479 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2857479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2857471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1542 + ... + 2844.

It is an arithmetic number, because the mean of its divisors is an integer number (258192).

2^2857479 is an apocalyptic number.

2857479 is a deficient number, since it is larger than the sum of its proper divisors (1273593).

2857479 is a wasteful number, since it uses less digits than its factorization.

2857479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366.

The product of its digits is 141120, while the sum is 42.

The square root of 2857479 is about 1690.4079389307. The cubic root of 2857479 is about 141.9039057588.

The spelling of 2857479 in words is "two million, eight hundred fifty-seven thousand, four hundred seventy-nine".