82040437 has 4 divisors (see below), whose sum is σ = 83028960. Its totient is φ = 81051916.

The previous prime is 82040417. The next prime is 82040501. The reversal of 82040437 is 73404028.

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 a de Polignac number, because none of the positive numbers 2^k-82040437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82040407) 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, 494137 + ... + 494302.

It is an arithmetic number, because the mean of its divisors is an integer number (20757240).

Almost surely, 2^82040437 is an apocalyptic number.

It is an amenable number.

82040437 is a deficient number, since it is larger than the sum of its proper divisors (988523).

82040437 is an equidigital number, since it uses as much as digits as its factorization.

82040437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988522.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 82040437 is about 9057.6176227527. The cubic root of 82040437 is about 434.5195505802.

The spelling of 82040437 in words is "eighty-two million, forty thousand, four hundred thirty-seven".