1989914 has 16 divisors (see below), whose sum is σ = 3144960. Its totient is φ = 942480.

The previous prime is 1989899. The next prime is 1989919. The reversal of 1989914 is 4199891.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1989919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8207 + ... + 8445.

It is an arithmetic number, because the mean of its divisors is an integer number (196560).

2^1989914 is an apocalyptic number.

1989914 is a deficient number, since it is larger than the sum of its proper divisors (1155046).

1989914 is a wasteful number, since it uses less digits than its factorization.

1989914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445.

The product of its digits is 23328, while the sum is 41.

The square root of 1989914 is about 1410.6431157454. The cubic root of 1989914 is about 125.7799552366.

The spelling of 1989914 in words is "one million, nine hundred eighty-nine thousand, nine hundred fourteen".