47878858 has 8 divisors (see below), whose sum is σ = 71957700. Its totient is φ = 23892960.

The previous prime is 47878813. The next prime is 47878867. The reversal of 47878858 is 85887874.

47878858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 47568609 + 310249 = 6897^2 + 557^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×47878858³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47878799 and 47878808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21933 + ... + 24016.

Almost surely, 2^47878858 is an apocalyptic number.

47878858 is a deficient number, since it is larger than the sum of its proper divisors (24078842).

47878858 is a wasteful number, since it uses less digits than its factorization.

47878858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46472.

The product of its digits is 4014080, while the sum is 55.

The square root of 47878858 is about 6919.4550363450. The cubic root of 47878858 is about 363.1181254136.

The spelling of 47878858 in words is "forty-seven million, eight hundred seventy-eight thousand, eight hundred fifty-eight".