549878906 has 16 divisors (see below), whose sum is σ = 873815040. Its totient is φ = 258624960.

The previous prime is 549878873. The next prime is 549878911. The reversal of 549878906 is 609878945.

549878906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×549878906² = 604733622527513672, which contains 22 as substring.

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, 84551 + ... + 90821.

It is an arithmetic number, because the mean of its divisors is an integer number (54613440).

Almost surely, 2^549878906 is an apocalyptic number.

549878906 is a deficient number, since it is larger than the sum of its proper divisors (323936134).

549878906 is a wasteful number, since it uses less digits than its factorization.

549878906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8869.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The square root of 549878906 is about 23449.4969242413. The cubic root of 549878906 is about 819.2611359508.

The spelling of 549878906 in words is "five hundred forty-nine million, eight hundred seventy-eight thousand, nine hundred six".