82686502 has 8 divisors (see below), whose sum is σ = 124164936. Its totient is φ = 41298192.

The previous prime is 82686491. The next prime is 82686523. The reversal of 82686502 is 20568628.

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

It is a super-2 number, since 2×82686502² = 13674115225992008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20188 + ... + 23935.

It is an arithmetic number, because the mean of its divisors is an integer number (15520617).

Almost surely, 2^82686502 is an apocalyptic number.

82686502 is a deficient number, since it is larger than the sum of its proper divisors (41478434).

82686502 is a wasteful number, since it uses less digits than its factorization.

82686502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45062.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 82686502 is about 9093.2118638026. The cubic root of 82686502 is about 435.6571772761.

The spelling of 82686502 in words is "eighty-two million, six hundred eighty-six thousand, five hundred two".