82465889 has 4 divisors (see below), whose sum is σ = 89962800. Its totient is φ = 74968980.

The previous prime is 82465849. The next prime is 82465897. The reversal of 82465889 is 98856428.

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 82465889 - 2⁸ = 82465633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82465819) 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, 3748439 + ... + 3748460.

It is an arithmetic number, because the mean of its divisors is an integer number (22490700).

Almost surely, 2^82465889 is an apocalyptic number.

It is an amenable number.

82465889 is a deficient number, since it is larger than the sum of its proper divisors (7496911).

82465889 is a wasteful number, since it uses less digits than its factorization.

82465889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7496910.

The product of its digits is 1105920, while the sum is 50.

The square root of 82465889 is about 9081.0731194061. The cubic root of 82465889 is about 435.2693782245.

The spelling of 82465889 in words is "eighty-two million, four hundred sixty-five thousand, eight hundred eighty-nine".