8491275 has 36 divisors (see below), whose sum is σ = 16384368. Its totient is φ = 4178880.

The previous prime is 8491267. The next prime is 8491277. The reversal of 8491275 is 5721948.

It is not a de Polignac number, because 8491275 - 2³ = 8491267 is a prime.

It is a super-2 number, since 2×8491275² = 144203502251250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8491277) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1474 + ... + 4376.

Almost surely, 2^8491275 is an apocalyptic number.

8491275 is a deficient number, since it is larger than the sum of its proper divisors (7893093).

8491275 is a wasteful number, since it uses less digits than its factorization.

8491275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2932 (or 2924 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 8491275 is about 2913.9792380866. The cubic root of 8491275 is about 204.0129028748.

The spelling of 8491275 in words is "eight million, four hundred ninety-one thousand, two hundred seventy-five".