8251397 has 16 divisors (see below), whose sum is σ = 10399104. Its totient is φ = 6360000.

The previous prime is 8251387. The next prime is 8251403. The reversal of 8251397 is 7931528.

It is a cyclic number.

It is not a de Polignac number, because 8251397 - 2¹⁰ = 8250373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8251337) 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, 7247 + ... + 8307.

It is an arithmetic number, because the mean of its divisors is an integer number (649944).

Almost surely, 2^8251397 is an apocalyptic number.

It is an amenable number.

8251397 is a deficient number, since it is larger than the sum of its proper divisors (2147707).

8251397 is a wasteful number, since it uses less digits than its factorization.

8251397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180.

The product of its digits is 15120, while the sum is 35.

The square root of 8251397 is about 2872.5244994604. The cubic root of 8251397 is about 202.0734056648.

It can be divided in two parts, 825 and 1397, that added together give a palindrome (2222).

The spelling of 8251397 in words is "eight million, two hundred fifty-one thousand, three hundred ninety-seven".