1997102 has 4 divisors (see below), whose sum is σ = 2995656. Its totient is φ = 998550.

The previous prime is 1997101. The next prime is 1997111. The reversal of 1997102 is 2017991.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1997101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499274 + ... + 499277.

It is an arithmetic number, because the mean of its divisors is an integer number (748914).

2^1997102 is an apocalyptic number.

1997102 is a deficient number, since it is larger than the sum of its proper divisors (998554).

1997102 is an equidigital number, since it uses as much as digits as its factorization.

1997102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998553.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 1997102 is about 1413.1885932175. The cubic root of 1997102 is about 125.9312213865.

The spelling of 1997102 in words is "one million, nine hundred ninety-seven thousand, one hundred two".