78785841 has 16 divisors (see below), whose sum is σ = 106714944. Its totient is φ = 51695424.

The previous prime is 78785821. The next prime is 78785843. The reversal of 78785841 is 14858787.

It is not a de Polignac number, because 78785841 - 2⁷ = 78785713 is a prime.

Its product of digits (501760) is a multiple of the sum of its prime divisors (1280).

It is not an unprimeable number, because it can be changed into a prime (78785843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98455 + ... + 99251.

It is an arithmetic number, because the mean of its divisors is an integer number (6669684).

Almost surely, 2^78785841 is an apocalyptic number.

It is an amenable number.

78785841 is a deficient number, since it is larger than the sum of its proper divisors (27929103).

78785841 is a wasteful number, since it uses less digits than its factorization.

78785841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280.

The product of its digits is 501760, while the sum is 48.

The square root of 78785841 is about 8876.1388565074. The cubic root of 78785841 is about 428.6959609691.

The spelling of 78785841 in words is "seventy-eight million, seven hundred eighty-five thousand, eight hundred forty-one".