82758078 has 32 divisors (see below), whose sum is σ = 198055200. Its totient is φ = 25463808.

The previous prime is 82758077. The next prime is 82758103. The reversal of 82758078 is 87085728.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82758073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58243 + ... + 59646.

It is an arithmetic number, because the mean of its divisors is an integer number (6189225).

Almost surely, 2^82758078 is an apocalyptic number.

82758078 is an abundant number, since it is smaller than the sum of its proper divisors (115297122).

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

82758078 is a wasteful number, since it uses less digits than its factorization.

82758078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117913 (or 117907 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The square root of 82758078 is about 9097.1466955304. The cubic root of 82758078 is about 435.7828471422.

The spelling of 82758078 in words is "eighty-two million, seven hundred fifty-eight thousand, seventy-eight".