73682143 has 4 divisors (see below), whose sum is σ = 73701160. Its totient is φ = 73663128.

The previous prime is 73682123. The next prime is 73682153. The reversal of 73682143 is 34128637.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73682143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73682099 and 73682108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73682123) 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, 1380 + ... + 12217.

It is an arithmetic number, because the mean of its divisors is an integer number (18425290).

Almost surely, 2^73682143 is an apocalyptic number.

73682143 is a deficient number, since it is larger than the sum of its proper divisors (19017).

73682143 is a wasteful number, since it uses less digits than its factorization.

73682143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19016.

The product of its digits is 24192, while the sum is 34.

The square root of 73682143 is about 8583.8303221814. The cubic root of 73682143 is about 419.2316697582.

The spelling of 73682143 in words is "seventy-three million, six hundred eighty-two thousand, one hundred forty-three".