7996257 has 12 divisors (see below), whose sum is σ = 11948820. Its totient is φ = 5146848.

The previous prime is 7996243. The next prime is 7996259. The reversal of 7996257 is 7526997.

It can be written as a sum of positive squares in 2 ways, for example, as 6230016 + 1766241 = 2496^2 + 1329^2 .

It is not a de Polignac number, because 7996257 - 2⁶ = 7996193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7996259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15058 + ... + 15579.

It is an arithmetic number, because the mean of its divisors is an integer number (995735).

Almost surely, 2^7996257 is an apocalyptic number.

It is an amenable number.

7996257 is a deficient number, since it is larger than the sum of its proper divisors (3952563).

7996257 is a wasteful number, since it uses less digits than its factorization.

7996257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30672 (or 30669 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 7996257 is about 2827.7653721623. The cubic root of 7996257 is about 199.9688034675.

It can be divided in two parts, 799 and 6257, that added together give a square (7056 = 84²).

The spelling of 7996257 in words is "seven million, nine hundred ninety-six thousand, two hundred fifty-seven".