1997063 has 4 divisors (see below), whose sum is σ = 2021208. Its totient is φ = 1972920.

The previous prime is 1997059. The next prime is 1997081. The reversal of 1997063 is 3607991.

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

It is a cyclic number.

It is not a de Polignac number, because 1997063 - 2² = 1997059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1997003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11948 + ... + 12113.

It is an arithmetic number, because the mean of its divisors is an integer number (505302).

2^1997063 is an apocalyptic number.

1997063 is a deficient number, since it is larger than the sum of its proper divisors (24145).

1997063 is an equidigital number, since it uses as much as digits as its factorization.

1997063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24144.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 1997063 is about 1413.1747945672. The cubic root of 1997063 is about 125.9304016404.

The spelling of 1997063 in words is "one million, nine hundred ninety-seven thousand, sixty-three".