1973863 has 8 divisors (see below), whose sum is σ = 2088576. Its totient is φ = 1862400.

The previous prime is 1973857. The next prime is 1973893. The reversal of 1973863 is 3683791.

1973863 is nontrivially palindromic in base 8.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1973863 - 2⁵ = 1973831 is a prime.

It is a super-2 number, since 2×1973863² = 7792270285538, which contains 22 as substring.

It is a Duffinian number.

1973863 is a lucky number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1973813) 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 in 7 ways as a sum of consecutive naturals, for example, 495 + ... + 2047.

It is an arithmetic number, because the mean of its divisors is an integer number (261072).

2^1973863 is an apocalyptic number.

1973863 is a deficient number, since it is larger than the sum of its proper divisors (114713).

1973863 is a wasteful number, since it uses less digits than its factorization.

1973863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625.

The product of its digits is 27216, while the sum is 37.

The square root of 1973863 is about 1404.9423475716. The cubic root of 1973863 is about 125.4408540207.

The spelling of 1973863 in words is "one million, nine hundred seventy-three thousand, eight hundred sixty-three".