82699994 has 8 divisors (see below), whose sum is σ = 133592340. Its totient is φ = 38169216.

The previous prime is 82699949. The next prime is 82699997. The reversal of 82699994 is 49999628.

It can be written as a sum of positive squares in 2 ways, for example, as 69472225 + 13227769 = 8335^2 + 3637^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82699997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1590359 + ... + 1590410.

Almost surely, 2^82699994 is an apocalyptic number.

82699994 is a deficient number, since it is larger than the sum of its proper divisors (50892346).

82699994 is a wasteful number, since it uses less digits than its factorization.

82699994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180784.

The product of its digits is 2519424, while the sum is 56.

The square root of 82699994 is about 9093.9537056222. The cubic root of 82699994 is about 435.6808714576.

The spelling of 82699994 in words is "eighty-two million, six hundred ninety-nine thousand, nine hundred ninety-four".