82437909 has 8 divisors (see below), whose sum is σ = 110056320. Its totient is φ = 54889056.

The previous prime is 82437889. The next prime is 82437919. The reversal of 82437909 is 90973428.

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

It is not a de Polignac number, because 82437909 - 2⁷ = 82437781 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82437919) 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, 14557 + ... + 19410.

It is an arithmetic number, because the mean of its divisors is an integer number (13757040).

Almost surely, 2^82437909 is an apocalyptic number.

It is an amenable number.

82437909 is a deficient number, since it is larger than the sum of its proper divisors (27618411).

82437909 is a wasteful number, since it uses less digits than its factorization.

82437909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34779.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 82437909 is about 9079.5324218816. The cubic root of 82437909 is about 435.2201448789.

The spelling of 82437909 in words is "eighty-two million, four hundred thirty-seven thousand, nine hundred nine".