82776243 has 8 divisors (see below), whose sum is σ = 120401856. Its totient is φ = 50167400.

The previous prime is 82776227. The next prime is 82776257. The reversal of 82776243 is 34267728.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82776243 - 2⁴ = 82776227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82776203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1254153 + ... + 1254218.

It is an arithmetic number, because the mean of its divisors is an integer number (15050232).

Almost surely, 2^82776243 is an apocalyptic number.

82776243 is a deficient number, since it is larger than the sum of its proper divisors (37625613).

82776243 is a wasteful number, since it uses less digits than its factorization.

82776243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508385.

The product of its digits is 112896, while the sum is 39.

The square root of 82776243 is about 9098.1450307192. The cubic root of 82776243 is about 435.8147288892.

The spelling of 82776243 in words is "eighty-two million, seven hundred seventy-six thousand, two hundred forty-three".