2538857 has 4 divisors (see below), whose sum is σ = 2558976. Its totient is φ = 2518740.

The previous prime is 2538839. The next prime is 2538871. The reversal of 2538857 is 7588352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2538857 - 2¹⁴ = 2522473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2538857.

It is not an unprimeable number, because it can be changed into a prime (2538817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9869 + ... + 10122.

It is an arithmetic number, because the mean of its divisors is an integer number (639744).

2^2538857 is an apocalyptic number.

It is an amenable number.

2538857 is a deficient number, since it is larger than the sum of its proper divisors (20119).

2538857 is a wasteful number, since it uses less digits than its factorization.

2538857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20118.

The product of its digits is 67200, while the sum is 38.

The square root of 2538857 is about 1593.3791137077. The cubic root of 2538857 is about 136.4204297707.

The spelling of 2538857 in words is "two million, five hundred thirty-eight thousand, eight hundred fifty-seven".