82359021 has 8 divisors (see below), whose sum is σ = 114586560. Its totient is φ = 52518752.

The previous prime is 82359019. The next prime is 82359023. The reversal of 82359021 is 12095328.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82359019) and next prime (82359023).

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

It is not a de Polignac number, because 82359021 - 2¹ = 82359019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82359021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82359023) 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, 596736 + ... + 596873.

It is an arithmetic number, because the mean of its divisors is an integer number (14323320).

Almost surely, 2^82359021 is an apocalyptic number.

It is an amenable number.

82359021 is a deficient number, since it is larger than the sum of its proper divisors (32227539).

82359021 is a wasteful number, since it uses less digits than its factorization.

82359021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193635.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 82359021 is about 9075.1871055092. The cubic root of 82359021 is about 435.0812742842.

The spelling of 82359021 in words is "eighty-two million, three hundred fifty-nine thousand, twenty-one".