47348239 has 4 divisors (see below), whose sum is σ = 48241656. Its totient is φ = 46454824.

The previous prime is 47348233. The next prime is 47348291. The reversal of 47348239 is 93284374.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93284374 = 2 ⋅46642187.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47348239 is a prime.

It is a super-2 number, since 2×47348239² = 4483711472802242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47348233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446629 + ... + 446734.

It is an arithmetic number, because the mean of its divisors is an integer number (12060414).

Almost surely, 2^47348239 is an apocalyptic number.

47348239 is a deficient number, since it is larger than the sum of its proper divisors (893417).

47348239 is an equidigital number, since it uses as much as digits as its factorization.

47348239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893416.

The product of its digits is 145152, while the sum is 40.

The square root of 47348239 is about 6881.0056677785. The cubic root of 47348239 is about 361.7717164127.

The spelling of 47348239 in words is "forty-seven million, three hundred forty-eight thousand, two hundred thirty-nine".