82387477 has 16 divisors (see below), whose sum is σ = 88732800. Its totient is φ = 76265280.

The previous prime is 82387471. The next prime is 82387489. The reversal of 82387477 is 77478328.

It is a cyclic number.

It is not a de Polignac number, because 82387477 - 2¹⁵ = 82354709 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 (82387471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211599 + ... + 211987.

It is an arithmetic number, because the mean of its divisors is an integer number (5545800).

Almost surely, 2^82387477 is an apocalyptic number.

It is an amenable number.

82387477 is a deficient number, since it is larger than the sum of its proper divisors (6345323).

82387477 is a wasteful number, since it uses less digits than its factorization.

82387477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636.

The product of its digits is 526848, while the sum is 46.

The square root of 82387477 is about 9076.7547614773. The cubic root of 82387477 is about 435.1313770617.

The spelling of 82387477 in words is "eighty-two million, three hundred eighty-seven thousand, four hundred seventy-seven".