10891974 has 24 divisors (see below), whose sum is σ = 22521240. Its totient is φ = 3511680.

The previous prime is 10891963. The next prime is 10891987. The reversal of 10891974 is 47919801.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4822 + ... + 6710.

It is an arithmetic number, because the mean of its divisors is an integer number (938385).

Almost surely, 2^10891974 is an apocalyptic number.

10891974 is an abundant number, since it is smaller than the sum of its proper divisors (11629266).

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

10891974 is a wasteful number, since it uses less digits than its factorization.

10891974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956 (or 1925 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 10891974 is about 3300.2990773565. The cubic root of 10891974 is about 221.6675895213.

The spelling of 10891974 in words is "ten million, eight hundred ninety-one thousand, nine hundred seventy-four".