100686946 has 32 divisors (see below), whose sum is σ = 160496640. Its totient is φ = 47308800.

The previous prime is 100686923. The next prime is 100686979. The reversal of 100686946 is 649686001.

It is a super-2 number, since 2×100686946² = 20275722189613832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100686899 and 100686908.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391650 + ... + 391906.

It is an arithmetic number, because the mean of its divisors is an integer number (5015520).

Almost surely, 2^100686946 is an apocalyptic number.

100686946 is a deficient number, since it is larger than the sum of its proper divisors (59809694).

100686946 is a wasteful number, since it uses less digits than its factorization.

100686946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 100686946 is about 10034.2885148873. The cubic root of 100686946 is about 465.2192991882.

The spelling of 100686946 in words is "one hundred million, six hundred eighty-six thousand, nine hundred forty-six".