47440331 has 2 divisors, whose sum is σ = 47440332. Its totient is φ = 47440330.

The previous prime is 47440313. The next prime is 47440357. The reversal of 47440331 is 13304474.

Together with previous prime (47440313) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (47440357) can be obtained adding 47440331 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47440331 - 2¹⁴ = 47423947 is a prime.

It is a super-2 number, since 2×47440331² = 4501170010779122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47440331.

It is not a weakly prime, because it can be changed into another prime (47440301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23720165 + 23720166.

It is an arithmetic number, because the mean of its divisors is an integer number (23720166).

Almost surely, 2^47440331 is an apocalyptic number.

47440331 is a deficient number, since it is larger than the sum of its proper divisors (1).

47440331 is an equidigital number, since it uses as much as digits as its factorization.

47440331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 47440331 is about 6887.6941714916. The cubic root of 47440331 is about 362.0061123476.

The spelling of 47440331 in words is "forty-seven million, four hundred forty thousand, three hundred thirty-one".