5778949 has 4 divisors (see below), whose sum is σ = 6304320. Its totient is φ = 5253580.

The previous prime is 5778943. The next prime is 5778953. The reversal of 5778949 is 9498775.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5778949 - 2⁷ = 5778821 is a prime.

5778949 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5778943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262669 + ... + 262690.

It is an arithmetic number, because the mean of its divisors is an integer number (1576080).

Almost surely, 2^5778949 is an apocalyptic number.

It is an amenable number.

5778949 is a deficient number, since it is larger than the sum of its proper divisors (525371).

5778949 is a wasteful number, since it uses less digits than its factorization.

5778949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525370.

The product of its digits is 635040, while the sum is 49.

The square root of 5778949 is about 2403.9444669127. The cubic root of 5778949 is about 179.4525444649.

The spelling of 5778949 in words is "five million, seven hundred seventy-eight thousand, nine hundred forty-nine".