1973953 has 4 divisors (see below), whose sum is σ = 2016000. Its totient is φ = 1931908.

The previous prime is 1973927. The next prime is 1973957. The reversal of 1973953 is 3593791.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1973953 is a prime.

It is a Duffinian number.

1973953 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1973957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20953 + ... + 21046.

It is an arithmetic number, because the mean of its divisors is an integer number (504000).

2^1973953 is an apocalyptic number.

It is an amenable number.

1973953 is a deficient number, since it is larger than the sum of its proper divisors (42047).

1973953 is an equidigital number, since it uses as much as digits as its factorization.

1973953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42046.

The product of its digits is 25515, while the sum is 37.

The square root of 1973953 is about 1404.9743769906. The cubic root of 1973953 is about 125.4427605200.

It can be divided in two parts, 1973 and 953, that added together give a triangular number (2926 = T₇₆).

The spelling of 1973953 in words is "one million, nine hundred seventy-three thousand, nine hundred fifty-three".