82859930 has 8 divisors (see below), whose sum is σ = 149147892. Its totient is φ = 33143968.

The previous prime is 82859927. The next prime is 82859939. The reversal of 82859930 is 3995828.

It can be written as a sum of positive squares in 2 ways, for example, as 78198649 + 4661281 = 8843^2 + 2159^2 .

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 (82859939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4142987 + ... + 4143006.

Almost surely, 2^82859930 is an apocalyptic number.

82859930 is a deficient number, since it is larger than the sum of its proper divisors (66287962).

82859930 is a wasteful number, since it uses less digits than its factorization.

82859930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8286000.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 82859930 is about 9102.7429931862. The cubic root of 82859930 is about 435.9615493685.

The spelling of 82859930 in words is "eighty-two million, eight hundred fifty-nine thousand, nine hundred thirty".