82819331 has 8 divisors (see below), whose sum is σ = 97914720. Its totient is φ = 68539968.

The previous prime is 82819277. The next prime is 82819339. The reversal of 82819331 is 13391828.

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

It is not a de Polignac number, because 82819331 - 2¹⁸ = 82557187 is a prime.

It is a super-2 number, since 2×82819331² = 13718083174575122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82819291 and 82819300.

It is not an unprimeable number, because it can be changed into a prime (82819339) 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, 203786 + ... + 204191.

It is an arithmetic number, because the mean of its divisors is an integer number (12239340).

Almost surely, 2^82819331 is an apocalyptic number.

82819331 is a deficient number, since it is larger than the sum of its proper divisors (15095389).

82819331 is a wasteful number, since it uses less digits than its factorization.

82819331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408013.

The product of its digits is 10368, while the sum is 35.

The square root of 82819331 is about 9100.5126778660. The cubic root of 82819331 is about 435.8903348321.

The spelling of 82819331 in words is "eighty-two million, eight hundred nineteen thousand, three hundred thirty-one".