2456397 has 6 divisors (see below), whose sum is σ = 3548142. Its totient is φ = 1637592.

The previous prime is 2456383. The next prime is 2456401. The reversal of 2456397 is 7936542.

2456397 is a `hidden beast` number, since 2 + 4 + 563 + 97 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1929321 + 527076 = 1389^2 + 726^2 .

It is not a de Polignac number, because 2456397 - 2⁸ = 2456141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2456357) 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 5 ways as a sum of consecutive naturals, for example, 136458 + ... + 136475.

It is an arithmetic number, because the mean of its divisors is an integer number (591357).

2^2456397 is an apocalyptic number.

It is an amenable number.

2456397 is a deficient number, since it is larger than the sum of its proper divisors (1091745).

2456397 is a wasteful number, since it uses less digits than its factorization.

2456397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272939 (or 272936 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 2456397 is about 1567.2896988113. The cubic root of 2456397 is about 134.9272035512.

The spelling of 2456397 in words is "two million, four hundred fifty-six thousand, three hundred ninety-seven".