82065437 has 4 divisors (see below), whose sum is σ = 83104320. Its totient is φ = 81026556.

The previous prime is 82065433. The next prime is 82065439. The reversal of 82065437 is 73456028.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 82065437 - 2² = 82065433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82065397 and 82065406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82065433) 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, 519323 + ... + 519480.

It is an arithmetic number, because the mean of its divisors is an integer number (20776080).

Almost surely, 2^82065437 is an apocalyptic number.

It is an amenable number.

82065437 is a deficient number, since it is larger than the sum of its proper divisors (1038883).

82065437 is a wasteful number, since it uses less digits than its factorization.

82065437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038882.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 82065437 is about 9058.9975714756. The cubic root of 82065437 is about 434.5636828233.

The spelling of 82065437 in words is "eighty-two million, sixty-five thousand, four hundred thirty-seven".