1999612 has 6 divisors (see below), whose sum is σ = 3499328. Its totient is φ = 999804.

The previous prime is 1999607. The next prime is 1999619. The reversal of 1999612 is 2169991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1999619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249948 + ... + 249955.

2^1999612 is an apocalyptic number.

It is an amenable number.

1999612 is a deficient number, since it is larger than the sum of its proper divisors (1499716).

1999612 is a wasteful number, since it uses less digits than its factorization.

1999612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499907 (or 499905 counting only the distinct ones).

The product of its digits is 8748, while the sum is 37.

The square root of 1999612 is about 1414.0763770037. The cubic root of 1999612 is about 125.9839569731.

The spelling of 1999612 in words is "one million, nine hundred ninety-nine thousand, six hundred twelve".