82755731 has 4 divisors (see below), whose sum is σ = 83752872. Its totient is φ = 81758592.

The previous prime is 82755727. The next prime is 82755733. The reversal of 82755731 is 13755728.

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 82755731 - 2² = 82755727 is a prime.

It is a super-2 number, since 2×82755731² = 13697022026688722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82755733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498446 + ... + 498611.

It is an arithmetic number, because the mean of its divisors is an integer number (20938218).

Almost surely, 2^82755731 is an apocalyptic number.

82755731 is a deficient number, since it is larger than the sum of its proper divisors (997141).

82755731 is an equidigital number, since it uses as much as digits as its factorization.

82755731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997140.

The product of its digits is 58800, while the sum is 38.

The square root of 82755731 is about 9097.0176981250. The cubic root of 82755731 is about 435.7787275362.

The spelling of 82755731 in words is "eighty-two million, seven hundred fifty-five thousand, seven hundred thirty-one".