47936538 has 24 divisors (see below), whose sum is σ = 111852468. Its totient is φ = 14749632.

The previous prime is 47936491. The next prime is 47936561. The reversal of 47936538 is 83563974.

It can be written as a sum of positive squares in 2 ways, for example, as 39275289 + 8661249 = 6267^2 + 2943^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47936493 and 47936502.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102195 + ... + 102662.

Almost surely, 2^47936538 is an apocalyptic number.

47936538 is an abundant number, since it is smaller than the sum of its proper divisors (63915930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47936538 is a wasteful number, since it uses less digits than its factorization.

47936538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204878 (or 204875 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 47936538 is about 6923.6217401011. The cubic root of 47936538 is about 363.2638838913.

The spelling of 47936538 in words is "forty-seven million, nine hundred thirty-six thousand, five hundred thirty-eight".