47638899 has 24 divisors (see below), whose sum is σ = 85792512. Its totient is φ = 24747120.

The previous prime is 47638897. The next prime is 47638907. The reversal of 47638899 is 99883674.

47638899 is a `hidden beast` number, since 476 + 3 + 88 + 99 = 666.

It is not a de Polignac number, because 47638899 - 2¹ = 47638897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47638897) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33679 + ... + 35064.

It is an arithmetic number, because the mean of its divisors is an integer number (3574688).

Almost surely, 2^47638899 is an apocalyptic number.

47638899 is a deficient number, since it is larger than the sum of its proper divisors (38153613).

47638899 is a wasteful number, since it uses less digits than its factorization.

47638899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68767 (or 68764 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 47638899 is about 6902.0938127499. The cubic root of 47638899 is about 362.5104846749.

The spelling of 47638899 in words is "forty-seven million, six hundred thirty-eight thousand, eight hundred ninety-nine".