1973243 has 8 divisors (see below), whose sum is σ = 2077056. Its totient is φ = 1872000.

The previous prime is 1973233. The next prime is 1973261. The reversal of 1973243 is 3423791.

1973243 = 147² + 148² + ... + 208².

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 1973243 - 2⁸ = 1972987 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1973203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1043 + ... + 2243.

It is an arithmetic number, because the mean of its divisors is an integer number (259632).

2^1973243 is an apocalyptic number.

1973243 is a deficient number, since it is larger than the sum of its proper divisors (103813).

1973243 is a wasteful number, since it uses less digits than its factorization.

1973243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285.

The product of its digits is 4536, while the sum is 29.

The square root of 1973243 is about 1404.7216806186. The cubic root of 1973243 is about 125.4277187838.

The spelling of 1973243 in words is "one million, nine hundred seventy-three thousand, two hundred forty-three".