100684490 has 8 divisors (see below), whose sum is σ = 181232100. Its totient is φ = 40273792.

The previous prime is 100684483. The next prime is 100684513. The reversal of 100684490 is 94486001.

It can be written as a sum of positive squares in 2 ways, for example, as 97555129 + 3129361 = 9877^2 + 1769^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5034215 + ... + 5034234.

Almost surely, 2^100684490 is an apocalyptic number.

100684490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100684490 is a deficient number, since it is larger than the sum of its proper divisors (80547610).

100684490 is a wasteful number, since it uses less digits than its factorization.

100684490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10068456.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 100684490 is about 10034.1661337652. The cubic root of 100684490 is about 465.2155165466.

The spelling of 100684490 in words is "one hundred million, six hundred eighty-four thousand, four hundred ninety".