1912086 has 80 divisors (see below), whose sum is σ = 4965840. Its totient is φ = 544320.

The previous prime is 1912069. The next prime is 1912087. The reversal of 1912086 is 6802191.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912087) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 51660 + ... + 51696.

It is an arithmetic number, because the mean of its divisors is an integer number (62073).

2^1912086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1912086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2482920).

1912086 is an abundant number, since it is smaller than the sum of its proper divisors (3053754).

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

1912086 is a wasteful number, since it uses less digits than its factorization.

1912086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1912086 is about 1382.7819784767. The cubic root of 1912086 is about 124.1182967510.

The spelling of 1912086 in words is "one million, nine hundred twelve thousand, eighty-six".