47421588 has 24 divisors (see below), whose sum is σ = 110797792. Its totient is φ = 15786144.

The previous prime is 47421581. The next prime is 47421589. The reversal of 47421588 is 88512474.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47421581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8706 + ... + 13062.

Almost surely, 2^47421588 is an apocalyptic number.

It is an amenable number.

47421588 is an abundant number, since it is smaller than the sum of its proper divisors (63376204).

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

47421588 is a wasteful number, since it uses less digits than its factorization.

47421588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271 (or 5269 counting only the distinct ones).

The product of its digits is 71680, while the sum is 39.

The square root of 47421588 is about 6886.3334220759. Note that the first 3 decimals coincide. The cubic root of 47421588 is about 361.9584315791.

The spelling of 47421588 in words is "forty-seven million, four hundred twenty-one thousand, five hundred eighty-eight".