109686474 has 20 divisors (see below), whose sum is σ = 245779314. Its totient is φ = 36562104.

The previous prime is 109686469. The next prime is 109686481. The reversal of 109686474 is 474686901.

109686474 is a `hidden beast` number, since 10 + 96 + 86 + 474 = 666.

It can be written as a sum of positive squares in only one way, i.e., 102151449 + 7535025 = 10107^2 + 2745^2 .

It is a super-2 number, since 2×109686474² = 24062245157105352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 338377 + ... + 338700.

Almost surely, 2^109686474 is an apocalyptic number.

109686474 is an abundant number, since it is smaller than the sum of its proper divisors (136092840).

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

109686474 is an equidigital number, since it uses as much as digits as its factorization.

109686474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677091 (or 677082 counting only the distinct ones).

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

The square root of 109686474 is about 10473.1310504548. The cubic root of 109686474 is about 478.6863298858.

The spelling of 109686474 in words is "one hundred nine million, six hundred eighty-six thousand, four hundred seventy-four".