82485919 has 4 divisors (see below), whose sum is σ = 83088144. Its totient is φ = 81883696.

The previous prime is 82485899. The next prime is 82485937. The reversal of 82485919 is 91958428.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82485919 - 2⁹ = 82485407 is a prime.

It is a super-2 number, since 2×82485919² = 13607853666549122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82485419) 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, 300907 + ... + 301180.

It is an arithmetic number, because the mean of its divisors is an integer number (20772036).

Almost surely, 2^82485919 is an apocalyptic number.

82485919 is a deficient number, since it is larger than the sum of its proper divisors (602225).

82485919 is a wasteful number, since it uses less digits than its factorization.

82485919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602224.

The product of its digits is 207360, while the sum is 46.

The square root of 82485919 is about 9082.1758956761. The cubic root of 82485919 is about 435.3046159856.

The spelling of 82485919 in words is "eighty-two million, four hundred eighty-five thousand, nine hundred nineteen".