1922986 has 8 divisors (see below), whose sum is σ = 3106404. Its totient is φ = 887520.

The previous prime is 1922983. The next prime is 1923013. The reversal of 1922986 is 6892291.

It can be written as a sum of positive squares in 2 ways, for example, as 1918225 + 4761 = 1385^2 + 69^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1922983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36955 + ... + 37006.

2^1922986 is an apocalyptic number.

1922986 is a deficient number, since it is larger than the sum of its proper divisors (1183418).

1922986 is a wasteful number, since it uses less digits than its factorization.

1922986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73976.

The product of its digits is 15552, while the sum is 37.

The square root of 1922986 is about 1386.7177073940. The cubic root of 1922986 is about 124.3536987838.

It can be divided in two parts, 19 and 22986, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 1922986 in words is "one million, nine hundred twenty-two thousand, nine hundred eighty-six".