10891912 has 32 divisors (see below), whose sum is σ = 21669120. Its totient is φ = 5123520.

The previous prime is 10891891. The next prime is 10891919. The reversal of 10891912 is 21919801.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (10891919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8583 + ... + 9769.

It is an arithmetic number, because the mean of its divisors is an integer number (677160).

Almost surely, 2^10891912 is an apocalyptic number.

It is an amenable number.

10891912 is a deficient number, since it is larger than the sum of its proper divisors (10777208).

10891912 is a wasteful number, since it uses less digits than its factorization.

10891912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261 (or 1257 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 31.

The square root of 10891912 is about 3300.2896842550. The cubic root of 10891912 is about 221.6671689237.

The spelling of 10891912 in words is "ten million, eight hundred ninety-one thousand, nine hundred twelve".