1912986 has 12 divisors (see below), whose sum is σ = 4144842. Its totient is φ = 637656.

The previous prime is 1912969. The next prime is 1912991. The reversal of 1912986 is 6892191.

It can be written as a sum of positive squares in only one way, i.e., 962361 + 950625 = 981^2 + 975^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1912986.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53121 + ... + 53156.

2^1912986 is an apocalyptic number.

1912986 is an abundant number, since it is smaller than the sum of its proper divisors (2231856).

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

1912986 is a wasteful number, since it uses less digits than its factorization.

1912986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106285 (or 106282 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 1912986 is about 1383.1073711032. The cubic root of 1912986 is about 124.1377674487.

The spelling of 1912986 in words is "one million, nine hundred twelve thousand, nine hundred eighty-six".