82990229 has 4 divisors (see below), whose sum is σ = 94845984. Its totient is φ = 71134476.

The previous prime is 82990217. The next prime is 82990231. The reversal of 82990229 is 92209928.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 82990229 - 2⁴ = 82990213 is a prime.

It is a super-3 number, since 3×82990229³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82990249) 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 3 ways as a sum of consecutive naturals, for example, 5927867 + ... + 5927880.

It is an arithmetic number, because the mean of its divisors is an integer number (23711496).

Almost surely, 2^82990229 is an apocalyptic number.

It is an amenable number.

82990229 is a deficient number, since it is larger than the sum of its proper divisors (11855755).

82990229 is a wasteful number, since it uses less digits than its factorization.

82990229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11855754.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 82990229 is about 9109.8973100689. The cubic root of 82990229 is about 436.1899492880.

The spelling of 82990229 in words is "eighty-two million, nine hundred ninety thousand, two hundred twenty-nine".