82119783 has 4 divisors (see below), whose sum is σ = 109493048. Its totient is φ = 54746520.

The previous prime is 82119773. The next prime is 82119811. The reversal of 82119783 is 38791128.

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

It is a de Polignac number, because none of the positive numbers 2^k-82119783 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 (82119703) 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 3 ways as a sum of consecutive naturals, for example, 13686628 + ... + 13686633.

It is an arithmetic number, because the mean of its divisors is an integer number (27373262).

Almost surely, 2^82119783 is an apocalyptic number.

82119783 is a deficient number, since it is larger than the sum of its proper divisors (27373265).

82119783 is a wasteful number, since it uses less digits than its factorization.

82119783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27373264.

The product of its digits is 24192, while the sum is 39.

The square root of 82119783 is about 9061.9966342964. The cubic root of 82119783 is about 434.6595883488.

The spelling of 82119783 in words is "eighty-two million, one hundred nineteen thousand, seven hundred eighty-three".