10197918 has 12 divisors (see below), whose sum is σ = 22095528. Its totient is φ = 3399300.

The previous prime is 10197917. The next prime is 10197949. The reversal of 10197918 is 81979101.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10197917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 283258 + ... + 283293.

It is an arithmetic number, because the mean of its divisors is an integer number (1841294).

Almost surely, 2^10197918 is an apocalyptic number.

10197918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10197918 is an abundant number, since it is smaller than the sum of its proper divisors (11897610).

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

10197918 is a wasteful number, since it uses less digits than its factorization.

10197918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566559 (or 566556 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 36.

The square root of 10197918 is about 3193.4179181560. The cubic root of 10197918 is about 216.8555318366.

The spelling of 10197918 in words is "ten million, one hundred ninety-seven thousand, nine hundred eighteen".