1989692 has 6 divisors (see below), whose sum is σ = 3481968. Its totient is φ = 994844.

The previous prime is 1989683. The next prime is 1989721. The reversal of 1989692 is 2969891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248708 + ... + 248715.

It is an arithmetic number, because the mean of its divisors is an integer number (580328).

2^1989692 is an apocalyptic number.

It is an amenable number.

1989692 is a deficient number, since it is larger than the sum of its proper divisors (1492276).

1989692 is a wasteful number, since it uses less digits than its factorization.

1989692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497427 (or 497425 counting only the distinct ones).

The product of its digits is 69984, while the sum is 44.

The square root of 1989692 is about 1410.5644260366. The cubic root of 1989692 is about 125.7752776159.

The spelling of 1989692 in words is "one million, nine hundred eighty-nine thousand, six hundred ninety-two".