82818459 has 6 divisors (see below), whose sum is σ = 119626676. Its totient is φ = 55212300.

The previous prime is 82818457. The next prime is 82818481. The reversal of 82818459 is 95481828.

It is a happy number.

It is not a de Polignac number, because 82818459 - 2¹ = 82818457 is a prime.

It is a super-2 number, since 2×82818459² = 13717794302269362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82818451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4601017 + ... + 4601034.

Almost surely, 2^82818459 is an apocalyptic number.

82818459 is a deficient number, since it is larger than the sum of its proper divisors (36808217).

82818459 is a wasteful number, since it uses less digits than its factorization.

82818459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9202057 (or 9202054 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 82818459 is about 9100.4647683511. The cubic root of 82818459 is about 435.8888050053. Note that the first 4 decimals are identical.

The spelling of 82818459 in words is "eighty-two million, eight hundred eighteen thousand, four hundred fifty-nine".