8372491 has 2 divisors, whose sum is σ = 8372492. Its totient is φ = 8372490.

The previous prime is 8372477. The next prime is 8372501. The reversal of 8372491 is 1942738.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8372491 - 2¹⁷ = 8241419 is a prime.

It is not a weakly prime, because it can be changed into another prime (8372411) 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 as a sum of consecutive naturals, namely, 4186245 + 4186246.

It is an arithmetic number, because the mean of its divisors is an integer number (4186246).

Almost surely, 2^8372491 is an apocalyptic number.

8372491 is a deficient number, since it is larger than the sum of its proper divisors (1).

8372491 is an equidigital number, since it uses as much as digits as its factorization.

8372491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 8372491 is about 2893.5257040503. The cubic root of 8372491 is about 203.0571235457.

The spelling of 8372491 in words is "eight million, three hundred seventy-two thousand, four hundred ninety-one".