2387457 has 6 divisors (see below), whose sum is σ = 3448562. Its totient is φ = 1591632.

The previous prime is 2387453. The next prime is 2387467. The reversal of 2387457 is 7547832.

It can be written as a sum of positive squares in only one way, i.e., 1640961 + 746496 = 1281^2 + 864^2 .

It is not a de Polignac number, because 2387457 - 2² = 2387453 is a prime.

It is a Duffinian number.

2387457 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2387453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132628 + ... + 132645.

2^2387457 is an apocalyptic number.

It is an amenable number.

2387457 is a deficient number, since it is larger than the sum of its proper divisors (1061105).

2387457 is a wasteful number, since it uses less digits than its factorization.

2387457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265279 (or 265276 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 2387457 is about 1545.1397995004. The cubic root of 2387457 is about 133.6529409092.

The spelling of 2387457 in words is "two million, three hundred eighty-seven thousand, four hundred fifty-seven".