78907883 has 4 divisors (see below), whose sum is σ = 79199328. Its totient is φ = 78616440.

The previous prime is 78907879. The next prime is 78907901. The reversal of 78907883 is 38870987.

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 78907883 - 2² = 78907879 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78907813) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 145316 + ... + 145857.

It is an arithmetic number, because the mean of its divisors is an integer number (19799832).

Almost surely, 2^78907883 is an apocalyptic number.

78907883 is a deficient number, since it is larger than the sum of its proper divisors (291445).

78907883 is a wasteful number, since it uses less digits than its factorization.

78907883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291444.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 78907883 is about 8883.0109197276. The cubic root of 78907883 is about 428.9172017421.

The spelling of 78907883 in words is "seventy-eight million, nine hundred seven thousand, eight hundred eighty-three".