82866501 has 6 divisors (see below), whose sum is σ = 119696070. Its totient is φ = 55244328.

The previous prime is 82866479. The next prime is 82866523. The reversal of 82866501 is 10566828.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82866479) and next prime (82866523).

It can be written as a sum of positive squares in only one way, i.e., 80460900 + 2405601 = 8970^2 + 1551^2 .

It is not a de Polignac number, because 82866501 - 2⁹ = 82865989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82866541) 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, 4603686 + ... + 4603703.

It is an arithmetic number, because the mean of its divisors is an integer number (19949345).

Almost surely, 2^82866501 is an apocalyptic number.

It is an amenable number.

82866501 is a deficient number, since it is larger than the sum of its proper divisors (36829569).

82866501 is a wasteful number, since it uses less digits than its factorization.

82866501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9207395 (or 9207392 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 82866501 is about 9103.1039211908. The cubic root of 82866501 is about 435.9730733448.

The spelling of 82866501 in words is "eighty-two million, eight hundred sixty-six thousand, five hundred one".