1989502 has 4 divisors (see below), whose sum is σ = 2984256. Its totient is φ = 994750.

The previous prime is 1989499. The next prime is 1989517. The reversal of 1989502 is 2059891.

It is a semiprime because it is the product of two primes.

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, 497374 + ... + 497377.

It is an arithmetic number, because the mean of its divisors is an integer number (746064).

2^1989502 is an apocalyptic number.

1989502 is a deficient number, since it is larger than the sum of its proper divisors (994754).

1989502 is an equidigital number, since it uses as much as digits as its factorization.

1989502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994753.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 1989502 is about 1410.4970755021. The cubic root of 1989502 is about 125.7712739706.

The spelling of 1989502 in words is "one million, nine hundred eighty-nine thousand, five hundred two".