78874443 has 6 divisors (see below), whose sum is σ = 113929764. Its totient is φ = 52582956.

The previous prime is 78874399. The next prime is 78874451. The reversal of 78874443 is 34447887.

It is not a de Polignac number, because 78874443 - 2⁶ = 78874379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78874463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4381905 + ... + 4381922.

It is an arithmetic number, because the mean of its divisors is an integer number (18988294).

Almost surely, 2^78874443 is an apocalyptic number.

78874443 is a deficient number, since it is larger than the sum of its proper divisors (35055321).

78874443 is a wasteful number, since it uses less digits than its factorization.

78874443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8763833 (or 8763830 counting only the distinct ones).

The product of its digits is 602112, while the sum is 45.

The square root of 78874443 is about 8881.1284755936. The cubic root of 78874443 is about 428.8566035810.

The spelling of 78874443 in words is "seventy-eight million, eight hundred seventy-four thousand, four hundred forty-three".