82669249 has 8 divisors (see below), whose sum is σ = 94265640. Its totient is φ = 71821056.

The previous prime is 82669201. The next prime is 82669259. The reversal of 82669249 is 94296628.

It can be written as a sum of positive squares in 4 ways, for example, as 640000 + 82029249 = 800^2 + 9057^2 .

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

It is not a de Polignac number, because 82669249 - 2¹⁷ = 82538177 is a prime.

It is a super-3 number, since 3×82669249³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82669199 and 82669208.

It is not an unprimeable number, because it can be changed into a prime (82669259) 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, 186814 + ... + 187255.

It is an arithmetic number, because the mean of its divisors is an integer number (11783205).

Almost surely, 2^82669249 is an apocalyptic number.

It is an amenable number.

82669249 is a deficient number, since it is larger than the sum of its proper divisors (11596391).

82669249 is a wasteful number, since it uses less digits than its factorization.

82669249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374099.

The product of its digits is 373248, while the sum is 46.

The square root of 82669249 is about 9092.2631396149. The cubic root of 82669249 is about 435.6268744014.

The spelling of 82669249 in words is "eighty-two million, six hundred sixty-nine thousand, two hundred forty-nine".