10091000 has 32 divisors (see below), whose sum is σ = 23615280. Its totient is φ = 4036000.

The previous prime is 10090999. The next prime is 10091021. The reversal of 10091000 is 19001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4046 + ... + 6045.

Almost surely, 2^10091000 is an apocalyptic number.

10091000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10091000 is an abundant number, since it is smaller than the sum of its proper divisors (13524280).

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

10091000 is a wasteful number, since it uses less digits than its factorization.

10091000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10112 (or 10098 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 10091000 is about 3176.6334380913. The cubic root of 10091000 is about 216.0950085012.

The spelling of 10091000 in words is "ten million, ninety-one thousand".