8197537 has 2 divisors, whose sum is σ = 8197538. Its totient is φ = 8197536.

The previous prime is 8197507. The next prime is 8197543. The reversal of 8197537 is 7357918.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6431296 + 1766241 = 2536^2 + 1329^2 .

It is a cyclic number.

It is not a de Polignac number, because 8197537 - 2¹¹ = 8195489 is a prime.

It is a super-2 number, since 2×8197537² = 134399225732738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8197537.

It is not a weakly prime, because it can be changed into another prime (8197507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4098768 + 4098769.

It is an arithmetic number, because the mean of its divisors is an integer number (4098769).

Almost surely, 2^8197537 is an apocalyptic number.

It is an amenable number.

8197537 is a deficient number, since it is larger than the sum of its proper divisors (1).

8197537 is an equidigital number, since it uses as much as digits as its factorization.

8197537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 40.

The square root of 8197537 is about 2863.1341219021. The cubic root of 8197537 is about 201.6327756114.

The spelling of 8197537 in words is "eight million, one hundred ninety-seven thousand, five hundred thirty-seven".