275972868 has 18 divisors (see below), whose sum is σ = 697598174. Its totient is φ = 91990944.

The previous prime is 275972867. The next prime is 275972869. The reversal of 275972868 is 868279572.

It is a happy number.

275972868 is a `hidden beast` number, since 27 + 597 + 28 + 6 + 8 = 666.

275972868 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (275972867) and next prime (275972869).

It can be written as a sum of positive squares in only one way, i.e., 166100544 + 109872324 = 12888^2 + 10482^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×275972868² = 152322047744290848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (275972863) 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, 3832921 + ... + 3832992.

Almost surely, 2^275972868 is an apocalyptic number.

It is an amenable number.

275972868 is an abundant number, since it is smaller than the sum of its proper divisors (421625306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275972868 is a wasteful number, since it uses less digits than its factorization.

275972868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7665923 (or 7665918 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 275972868 is about 16612.4311285254. The cubic root of 275972868 is about 651.0616716900.

The spelling of 275972868 in words is "two hundred seventy-five million, nine hundred seventy-two thousand, eight hundred sixty-eight".