47949443 has 2 divisors, whose sum is σ = 47949444. Its totient is φ = 47949442.

The previous prime is 47949439. The next prime is 47949479. The reversal of 47949443 is 34494974.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47949443 - 2² = 47949439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47949394 and 47949403.

It is not a weakly prime, because it can be changed into another prime (47942443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23974721 + 23974722.

It is an arithmetic number, because the mean of its divisors is an integer number (23974722).

Almost surely, 2^47949443 is an apocalyptic number.

47949443 is a deficient number, since it is larger than the sum of its proper divisors (1).

47949443 is an equidigital number, since it uses as much as digits as its factorization.

47949443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 44.

The square root of 47949443 is about 6924.5536318235. The cubic root of 47949443 is about 363.2964790682.

The spelling of 47949443 in words is "forty-seven million, nine hundred forty-nine thousand, four hundred forty-three".