47288091 has 8 divisors (see below), whose sum is σ = 63173440. Its totient is φ = 31464072.

The previous prime is 47288083. The next prime is 47288107. The reversal of 47288091 is 19088274.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47288091 - 2³ = 47288083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47288011) 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, 13501 + ... + 16638.

It is an arithmetic number, because the mean of its divisors is an integer number (7896680).

Almost surely, 2^47288091 is an apocalyptic number.

47288091 is a deficient number, since it is larger than the sum of its proper divisors (15885349).

47288091 is a wasteful number, since it uses less digits than its factorization.

47288091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30665.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 47288091 is about 6876.6336968025. The cubic root of 47288091 is about 361.6184613938.

The spelling of 47288091 in words is "forty-seven million, two hundred eighty-eight thousand, ninety-one".