82708917 has 8 divisors (see below), whose sum is σ = 110531520. Its totient is φ = 55012800.

The previous prime is 82708903. The next prime is 82708939. The reversal of 82708917 is 71980728.

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

It is not a de Polignac number, because 82708917 - 2⁶ = 82708853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82708987) 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, 30084 + ... + 32717.

It is an arithmetic number, because the mean of its divisors is an integer number (13816440).

Almost surely, 2^82708917 is an apocalyptic number.

It is an amenable number.

82708917 is a deficient number, since it is larger than the sum of its proper divisors (27822603).

82708917 is a wasteful number, since it uses less digits than its factorization.

82708917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63243.

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 82708917 is about 9094.4442930836. Note that the first 3 decimals coincide. The cubic root of 82708917 is about 435.6965403044.

The spelling of 82708917 in words is "eighty-two million, seven hundred eight thousand, nine hundred seventeen".