2866091247 has 6 divisors (see below), whose sum is σ = 4139909592. Its totient is φ = 1910727492.

The previous prime is 2866091243. The next prime is 2866091279. The reversal of 2866091247 is 7421906682.

It is a happy number.

2866091247 is a `hidden beast` number, since 28 + 6 + 609 + 12 + 4 + 7 = 666.

It is not a de Polignac number, because 2866091247 - 2² = 2866091243 is a prime.

It is a super-2 number, since 2×2866091247² = 16428958072260030018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2866091243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 159227283 + ... + 159227300.

It is an arithmetic number, because the mean of its divisors is an integer number (689984932).

Almost surely, 2^2866091247 is an apocalyptic number.

2866091247 is a deficient number, since it is larger than the sum of its proper divisors (1273818345).

2866091247 is a wasteful number, since it uses less digits than its factorization.

2866091247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318454589 (or 318454586 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 2866091247 is about 53535.8874681274. The cubic root of 2866091247 is about 1420.4632567407.

The spelling of 2866091247 in words is "two billion, eight hundred sixty-six million, ninety-one thousand, two hundred forty-seven".