82433649 has 4 divisors (see below), whose sum is σ = 109911536. Its totient is φ = 54955764.

The previous prime is 82433599. The next prime is 82433683. The reversal of 82433649 is 94633428.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 82433649 - 2⁹ = 82433137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82433699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13738939 + ... + 13738944.

It is an arithmetic number, because the mean of its divisors is an integer number (27477884).

Almost surely, 2^82433649 is an apocalyptic number.

It is an amenable number.

82433649 is a deficient number, since it is larger than the sum of its proper divisors (27477887).

82433649 is a wasteful number, since it uses less digits than its factorization.

82433649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27477886.

The product of its digits is 124416, while the sum is 39.

The square root of 82433649 is about 9079.2978252726. The cubic root of 82433649 is about 435.2126480457.

The spelling of 82433649 in words is "eighty-two million, four hundred thirty-three thousand, six hundred forty-nine".