47427331 has 8 divisors (see below), whose sum is σ = 57391200. Its totient is φ = 38260608.

The previous prime is 47427329. The next prime is 47427349. The reversal of 47427331 is 13372474.

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

It is not a de Polignac number, because 47427331 - 2¹ = 47427329 is a prime.

It is a super-2 number, since 2×47427331² = 4498703451567122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47427293 and 47427302.

It is not an unprimeable number, because it can be changed into a prime (47427301) 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, 199156 + ... + 199393.

It is an arithmetic number, because the mean of its divisors is an integer number (7173900).

Almost surely, 2^47427331 is an apocalyptic number.

47427331 is a deficient number, since it is larger than the sum of its proper divisors (9963869).

47427331 is a wasteful number, since it uses less digits than its factorization.

47427331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398573.

The product of its digits is 14112, while the sum is 31.

The square root of 47427331 is about 6886.7503947798. The cubic root of 47427331 is about 361.9730426697.

The spelling of 47427331 in words is "forty-seven million, four hundred twenty-seven thousand, three hundred thirty-one".