78422083 has 4 divisors (see below), whose sum is σ = 79303320. Its totient is φ = 77540848.

The previous prime is 78422077. The next prime is 78422087. The reversal of 78422083 is 38022487.

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 78422083 - 2²⁵ = 44867651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78422087) 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, 440485 + ... + 440662.

It is an arithmetic number, because the mean of its divisors is an integer number (19825830).

Almost surely, 2^78422083 is an apocalyptic number.

78422083 is a deficient number, since it is larger than the sum of its proper divisors (881237).

78422083 is an equidigital number, since it uses as much as digits as its factorization.

78422083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881236.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 78422083 is about 8855.6243709859. The cubic root of 78422083 is about 428.0351730345.

The spelling of 78422083 in words is "seventy-eight million, four hundred twenty-two thousand, eighty-three".