2557347 has 16 divisors (see below), whose sum is σ = 3833088. Its totient is φ = 1504800.

The previous prime is 2557337. The next prime is 2557351. The reversal of 2557347 is 7437552.

It is not a de Polignac number, because 2557347 - 2¹² = 2553251 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁷ + 5⁹ + 7 + 3⁶ + 4⁵ + 7² .

It is not an unprimeable number, because it can be changed into a prime (2557337) 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, 529 + ... + 2322.

It is an arithmetic number, because the mean of its divisors is an integer number (239568).

2^2557347 is an apocalyptic number.

2557347 is a deficient number, since it is larger than the sum of its proper divisors (1275741).

2557347 is a wasteful number, since it uses less digits than its factorization.

2557347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890.

The product of its digits is 29400, while the sum is 33.

The square root of 2557347 is about 1599.1707225934. The cubic root of 2557347 is about 136.7508035027.

The spelling of 2557347 in words is "two million, five hundred fifty-seven thousand, three hundred forty-seven".