47988331 has 8 divisors (see below), whose sum is σ = 50922000. Its totient is φ = 45067008.

The previous prime is 47988287. The next prime is 47988361. The reversal of 47988331 is 13388974.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 47988331 - 2⁷ = 47988203 is a prime.

It is a super-2 number, since 2×47988331² = 4605759824331122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47988361) 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, 5655 + ... + 11311.

It is an arithmetic number, because the mean of its divisors is an integer number (6365250).

Almost surely, 2^47988331 is an apocalyptic number.

47988331 is a deficient number, since it is larger than the sum of its proper divisors (2933669).

47988331 is a wasteful number, since it uses less digits than its factorization.

47988331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6173.

The product of its digits is 145152, while the sum is 43.

The square root of 47988331 is about 6927.3610415511. The cubic root of 47988331 is about 363.3946662071.

The spelling of 47988331 in words is "forty-seven million, nine hundred eighty-eight thousand, three hundred thirty-one".