82990243 has 8 divisors (see below), whose sum is σ = 100425312. Its totient is φ = 66950016.

The previous prime is 82990241. The next prime is 82990249. The reversal of 82990243 is 34209928.

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

It is not a de Polignac number, because 82990243 - 2¹ = 82990241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82990241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348580 + ... + 348817.

It is an arithmetic number, because the mean of its divisors is an integer number (12553164).

Almost surely, 2^82990243 is an apocalyptic number.

82990243 is a deficient number, since it is larger than the sum of its proper divisors (17435069).

82990243 is a wasteful number, since it uses less digits than its factorization.

82990243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697421.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 82990243 is about 9109.8980784639. The cubic root of 82990243 is about 436.1899738156.

The spelling of 82990243 in words is "eighty-two million, nine hundred ninety thousand, two hundred forty-three".