5781398 has 16 divisors (see below), whose sum is σ = 10179744. Its totient is φ = 2410560.

The previous prime is 5781383. The next prime is 5781409. The reversal of 5781398 is 8931875.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5063 + ... + 6098.

It is an arithmetic number, because the mean of its divisors is an integer number (636234).

Almost surely, 2^5781398 is an apocalyptic number.

5781398 is a deficient number, since it is larger than the sum of its proper divisors (4398346).

5781398 is a wasteful number, since it uses less digits than its factorization.

5781398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11207.

The product of its digits is 60480, while the sum is 41.

The square root of 5781398 is about 2404.4537841264. The cubic root of 5781398 is about 179.4778903202.

The spelling of 5781398 in words is "five million, seven hundred eighty-one thousand, three hundred ninety-eight".