82719963 has 6 divisors (see below), whose sum is σ = 119484404. Its totient is φ = 55146636.

The previous prime is 82719961. The next prime is 82719971. The reversal of 82719963 is 36991728.

It is not a de Polignac number, because 82719963 - 2¹ = 82719961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82719961) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4595545 + ... + 4595562.

Almost surely, 2^82719963 is an apocalyptic number.

82719963 is a deficient number, since it is larger than the sum of its proper divisors (36764441).

82719963 is a wasteful number, since it uses less digits than its factorization.

82719963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9191113 (or 9191110 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 82719963 is about 9095.0515666488. The cubic root of 82719963 is about 435.7159355922.

The spelling of 82719963 in words is "eighty-two million, seven hundred nineteen thousand, nine hundred sixty-three".