1996998 has 32 divisors (see below), whose sum is σ = 4320000. Its totient is φ = 613536.

The previous prime is 1996979. The next prime is 1997003. The reversal of 1996998 is 8996991.

It is a self number, because there is not a number n which added to its sum of digits gives 1996998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3753 + ... + 4251.

It is an arithmetic number, because the mean of its divisors is an integer number (135000).

2^1996998 is an apocalyptic number.

1996998 is an abundant number, since it is smaller than the sum of its proper divisors (2323002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1996998 is a wasteful number, since it uses less digits than its factorization.

1996998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556.

The product of its digits is 314928, while the sum is 51.

The square root of 1996998 is about 1413.1517965173. The cubic root of 1996998 is about 125.9290353733.

The spelling of 1996998 in words is "one million, nine hundred ninety-six thousand, nine hundred ninety-eight".