47688290 has 64 divisors (see below), whose sum is σ = 99792000. Its totient is φ = 16257024.

The previous prime is 47688257. The next prime is 47688299. The reversal of 47688290 is 9288674.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47688299) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105986 + ... + 106434.

It is an arithmetic number, because the mean of its divisors is an integer number (1559250).

Almost surely, 2^47688290 is an apocalyptic number.

47688290 is an abundant number, since it is smaller than the sum of its proper divisors (52103710).

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

47688290 is a wasteful number, since it uses less digits than its factorization.

47688290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 47688290 is about 6905.6708580702. The cubic root of 47688290 is about 362.6357224640.

The spelling of 47688290 in words is "forty-seven million, six hundred eighty-eight thousand, two hundred ninety".