109672866 has 20 divisors (see below), whose sum is σ = 245748822. Its totient is φ = 36557568.

The previous prime is 109672859. The next prime is 109672873. The reversal of 109672866 is 668276901.

It is an interprime number because it is at equal distance from previous prime (109672859) and next prime (109672873).

It can be written as a sum of positive squares in only one way, i.e., 83448225 + 26224641 = 9135^2 + 5121^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 in 9 ways as a sum of consecutive naturals, for example, 338335 + ... + 338658.

Almost surely, 2^109672866 is an apocalyptic number.

109672866 is an abundant number, since it is smaller than the sum of its proper divisors (136075956).

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

109672866 is an equidigital number, since it uses as much as digits as its factorization.

109672866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677007 (or 676998 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 109672866 is about 10472.4813678517. The cubic root of 109672866 is about 478.6665333611. Note that the first 3 decimals are identical.

The spelling of 109672866 in words is "one hundred nine million, six hundred seventy-two thousand, eight hundred sixty-six".