78322085 has 8 divisors (see below), whose sum is σ = 98933280. Its totient is φ = 59359824.

The previous prime is 78322067. The next prime is 78322093. The reversal of 78322085 is 58022387.

It is a happy number.

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 78322085 - 2⁶ = 78322021 is a prime.

It is a super-2 number, since 2×78322085² = 12268697997494450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 412127 + ... + 412316.

It is an arithmetic number, because the mean of its divisors is an integer number (12366660).

Almost surely, 2^78322085 is an apocalyptic number.

It is an amenable number.

78322085 is a deficient number, since it is larger than the sum of its proper divisors (20611195).

78322085 is a wasteful number, since it uses less digits than its factorization.

78322085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824467.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 78322085 is about 8849.9765536413. The cubic root of 78322085 is about 427.8531627919.

The spelling of 78322085 in words is "seventy-eight million, three hundred twenty-two thousand, eighty-five".