78608233 has 4 divisors (see below), whose sum is σ = 85754448. Its totient is φ = 71462020.

The previous prime is 78608213. The next prime is 78608249. The reversal of 78608233 is 33280687.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78608233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78608192 and 78608201.

It is not an unprimeable number, because it can be changed into a prime (78608213) 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 3 ways as a sum of consecutive naturals, for example, 3573091 + ... + 3573112.

It is an arithmetic number, because the mean of its divisors is an integer number (21438612).

Almost surely, 2^78608233 is an apocalyptic number.

It is an amenable number.

78608233 is a deficient number, since it is larger than the sum of its proper divisors (7146215).

78608233 is a wasteful number, since it uses less digits than its factorization.

78608233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7146214.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 78608233 is about 8866.1284109807. The cubic root of 78608233 is about 428.3735802072.

The spelling of 78608233 in words is "seventy-eight million, six hundred eight thousand, two hundred thirty-three".