82712755 has 4 divisors (see below), whose sum is σ = 99255312. Its totient is φ = 66170200.

The previous prime is 82712753. The next prime is 82712759. The reversal of 82712755 is 55721728.

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

It is not a de Polignac number, because 82712755 - 2¹ = 82712753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82712753) 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, 8271271 + ... + 8271280.

It is an arithmetic number, because the mean of its divisors is an integer number (24813828).

Almost surely, 2^82712755 is an apocalyptic number.

82712755 is a deficient number, since it is larger than the sum of its proper divisors (16542557).

82712755 is a wasteful number, since it uses less digits than its factorization.

82712755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16542556.

The product of its digits is 39200, while the sum is 37.

The square root of 82712755 is about 9094.6552985806. The cubic root of 82712755 is about 435.7032795111.

It can be divided in two parts, 8271 and 2755, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 82712755 in words is "eighty-two million, seven hundred twelve thousand, seven hundred fifty-five".