82549487 has 4 divisors (see below), whose sum is σ = 83152176. Its totient is φ = 81946800.

The previous prime is 82549451. The next prime is 82549513. The reversal of 82549487 is 78494528.

It is a happy number.

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 82549487 - 2¹⁰ = 82548463 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 (82549447) 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, 301139 + ... + 301412.

It is an arithmetic number, because the mean of its divisors is an integer number (20788044).

Almost surely, 2^82549487 is an apocalyptic number.

82549487 is a deficient number, since it is larger than the sum of its proper divisors (602689).

82549487 is a wasteful number, since it uses less digits than its factorization.

82549487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602688.

The product of its digits is 645120, while the sum is 47.

The square root of 82549487 is about 9085.6748235891. The cubic root of 82549487 is about 435.4164101716.

The spelling of 82549487 in words is "eighty-two million, five hundred forty-nine thousand, four hundred eighty-seven".