1994986 has 12 divisors (see below), whose sum is σ = 3481218. Its totient is φ = 854952.

The previous prime is 1994983. The next prime is 1994989. The reversal of 1994986 is 6894991.

It is an interprime number because it is at equal distance from previous prime (1994983) and next prime (1994989).

It can be written as a sum of positive squares in only one way, i.e., 1640961 + 354025 = 1281^2 + 595^2 .

It is not an unprimeable number, because it can be changed into a prime (1994983) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10081 + ... + 10276.

2^1994986 is an apocalyptic number.

1994986 is a deficient number, since it is larger than the sum of its proper divisors (1486232).

1994986 is a wasteful number, since it uses less digits than its factorization.

1994986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20373 (or 20366 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 1994986 is about 1412.4397332276. The cubic root of 1994986 is about 125.8867294792.

The spelling of 1994986 in words is "one million, nine hundred ninety-four thousand, nine hundred eighty-six".