82491269 has 8 divisors (see below), whose sum is σ = 94550208. Its totient is φ = 70500960.

The previous prime is 82491257. The next prime is 82491281. The reversal of 82491269 is 96219428.

It is an interprime number because it is at equal distance from previous prime (82491257) and next prime (82491281).

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

It is a cyclic number.

It is not a de Polignac number, because 82491269 - 2¹² = 82487173 is a prime.

It is a super-2 number, since 2×82491269² = 13609618922460722, which contains 22 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 (82491209) 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, 14552 + ... + 19409.

It is an arithmetic number, because the mean of its divisors is an integer number (11818776).

Almost surely, 2^82491269 is an apocalyptic number.

It is an amenable number.

82491269 is a deficient number, since it is larger than the sum of its proper divisors (12058939).

82491269 is a wasteful number, since it uses less digits than its factorization.

82491269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34315.

The product of its digits is 62208, while the sum is 41.

The square root of 82491269 is about 9082.4704238439. The cubic root of 82491269 is about 435.3140270033.

The spelling of 82491269 in words is "eighty-two million, four hundred ninety-one thousand, two hundred sixty-nine".