5778891 has 8 divisors (see below), whose sum is σ = 8561360. Its totient is φ = 3852576.

The previous prime is 5778887. The next prime is 5778893. The reversal of 5778891 is 1988775.

5778891 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5778891 - 2² = 5778887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5778893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106990 + ... + 107043.

It is an arithmetic number, because the mean of its divisors is an integer number (1070170).

Almost surely, 2^5778891 is an apocalyptic number.

5778891 is a deficient number, since it is larger than the sum of its proper divisors (2782469).

5778891 is a wasteful number, since it uses less digits than its factorization.

5778891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214042 (or 214036 counting only the distinct ones).

The product of its digits is 141120, while the sum is 45.

The square root of 5778891 is about 2403.9324033758. The cubic root of 5778891 is about 179.4519441088.

The spelling of 5778891 in words is "five million, seven hundred seventy-eight thousand, eight hundred ninety-one".