82277816 has 32 divisors (see below), whose sum is σ = 159274080. Its totient is φ = 39820800.

The previous prime is 82277803. The next prime is 82277827. The reversal of 82277816 is 61877228.

It is a super-3 number, since 3×82277816³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44021 + ... + 45851.

It is an arithmetic number, because the mean of its divisors is an integer number (4977315).

Almost surely, 2^82277816 is an apocalyptic number.

It is an amenable number.

82277816 is a deficient number, since it is larger than the sum of its proper divisors (76996264).

82277816 is a wasteful number, since it uses less digits than its factorization.

82277816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015 (or 2011 counting only the distinct ones).

The product of its digits is 75264, while the sum is 41.

The square root of 82277816 is about 9070.7119896952. The cubic root of 82277816 is about 434.9382323008.

The spelling of 82277816 in words is "eighty-two million, two hundred seventy-seven thousand, eight hundred sixteen".