47128226 has 16 divisors (see below), whose sum is σ = 71760696. Its totient is φ = 23210496.

The previous prime is 47128187. The next prime is 47128231. The reversal of 47128226 is 62282174.

It is a Cunningham number, because it is equal to 6865²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 39702601 + 7425625 = 6301^2 + 2725^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47128192 and 47128201.

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, 53300 + ... + 54176.

Almost surely, 2^47128226 is an apocalyptic number.

47128226 is a deficient number, since it is larger than the sum of its proper divisors (24632470).

47128226 is a wasteful number, since it uses less digits than its factorization.

47128226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253.

The product of its digits is 10752, while the sum is 32.

The square root of 47128226 is about 6865.0000728332. Note that the first 4 decimals coincide. The cubic root of 47128226 is about 361.2104981891.

The spelling of 47128226 in words is "forty-seven million, one hundred twenty-eight thousand, two hundred twenty-six".