82789269 has 8 divisors (see below), whose sum is σ = 116879040. Its totient is φ = 51946176.

The previous prime is 82789253. The next prime is 82789277. The reversal of 82789269 is 96298728.

It is a happy number.

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

It is not a de Polignac number, because 82789269 - 2⁴ = 82789253 is a prime.

It is a super-2 number, since 2×82789269² = 13708126123108722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 1623319 = 82789269 / (8 + 2 + 7 + 8 + 9 + 2 + 6 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82789279) 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, 811609 + ... + 811710.

It is an arithmetic number, because the mean of its divisors is an integer number (14609880).

Almost surely, 2^82789269 is an apocalyptic number.

It is an amenable number.

82789269 is a deficient number, since it is larger than the sum of its proper divisors (34089771).

82789269 is a wasteful number, since it uses less digits than its factorization.

82789269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623339.

The product of its digits is 870912, while the sum is 51.

The square root of 82789269 is about 9098.8608627674. The cubic root of 82789269 is about 435.8375882052.

The spelling of 82789269 in words is "eighty-two million, seven hundred eighty-nine thousand, two hundred sixty-nine".