82755078 has 16 divisors (see below), whose sum is σ = 189154560. Its totient is φ = 23644296.

The previous prime is 82755073. The next prime is 82755103. The reversal of 82755078 is 87055728.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1970359 = 82755078 / (8 + 2 + 7 + 5 + 5 + 0 + 7 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82755073) 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, 985138 + ... + 985221.

It is an arithmetic number, because the mean of its divisors is an integer number (11822160).

Almost surely, 2^82755078 is an apocalyptic number.

82755078 is an abundant number, since it is smaller than the sum of its proper divisors (106399482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82755078 is a wasteful number, since it uses less digits than its factorization.

82755078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970371.

The product of its (nonzero) digits is 156800, while the sum is 42.

The square root of 82755078 is about 9096.9818071710. The cubic root of 82755078 is about 435.7775813346. Note that the first 3 decimals are identical.

The spelling of 82755078 in words is "eighty-two million, seven hundred fifty-five thousand, seventy-eight".