8228691 has 12 divisors (see below), whose sum is σ = 12511720. Its totient is φ = 5196960.

The previous prime is 8228651. The next prime is 8228723. The reversal of 8228691 is 1968228.

It is not a de Polignac number, because 8228691 - 2¹⁵ = 8195923 is a prime.

It is a super-2 number, since 2×8228691² = 135422711146962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8228651) 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, 23890 + ... + 24231.

Almost surely, 2^8228691 is an apocalyptic number.

8228691 is a deficient number, since it is larger than the sum of its proper divisors (4283029).

8228691 is a wasteful number, since it uses less digits than its factorization.

8228691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48146 (or 48143 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 8228691 is about 2868.5695041257. The cubic root of 8228691 is about 201.8878817738.

The spelling of 8228691 in words is "eight million, two hundred twenty-eight thousand, six hundred ninety-one".