10196891 has 4 divisors (see below), whose sum is σ = 10434072. Its totient is φ = 9959712.

The previous prime is 10196887. The next prime is 10196903. The reversal of 10196891 is 19869101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19869101 = 7 ⋅2838443.

It is a cyclic number.

It is not a de Polignac number, because 10196891 - 2² = 10196887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10196801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118526 + ... + 118611.

It is an arithmetic number, because the mean of its divisors is an integer number (2608518).

Almost surely, 2^10196891 is an apocalyptic number.

10196891 is a deficient number, since it is larger than the sum of its proper divisors (237181).

10196891 is an equidigital number, since it uses as much as digits as its factorization.

10196891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237180.

The product of its (nonzero) digits is 3888, while the sum is 35.

The square root of 10196891 is about 3193.2571146088. The cubic root of 10196891 is about 216.8482519811.

The spelling of 10196891 in words is "ten million, one hundred ninety-six thousand, eight hundred ninety-one".