47278850 has 12 divisors (see below), whose sum is σ = 87938754. Its totient is φ = 18911520.

The previous prime is 47278849. The next prime is 47278871. The reversal of 47278850 is 5887274.

It can be written as a sum of positive squares in 3 ways, for example, as 17783089 + 29495761 = 4217^2 + 5431^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47278798 and 47278807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 472739 + ... + 472838.

Almost surely, 2^47278850 is an apocalyptic number.

47278850 is a deficient number, since it is larger than the sum of its proper divisors (40659904).

47278850 is a wasteful number, since it uses less digits than its factorization.

47278850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945589 (or 945584 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 47278850 is about 6875.9617509116. The cubic root of 47278850 is about 361.5949041314.

The spelling of 47278850 in words is "forty-seven million, two hundred seventy-eight thousand, eight hundred fifty".