82663679 has 8 divisors (see below), whose sum is σ = 98580480. Its totient is φ = 67773816.

The previous prime is 82663631. The next prime is 82663697. The reversal of 82663679 is 97636628.

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 82663679 - 2¹⁶ = 82598143 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 (82663579) 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, 256559 + ... + 256880.

It is an arithmetic number, because the mean of its divisors is an integer number (12322560).

Almost surely, 2^82663679 is an apocalyptic number.

82663679 is a deficient number, since it is larger than the sum of its proper divisors (15916801).

82663679 is a wasteful number, since it uses less digits than its factorization.

82663679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513469.

The product of its digits is 653184, while the sum is 47.

The square root of 82663679 is about 9091.9568300779. The cubic root of 82663679 is about 435.6170904482.

The spelling of 82663679 in words is "eighty-two million, six hundred sixty-three thousand, six hundred seventy-nine".