47073449 has 2 divisors, whose sum is σ = 47073450. Its totient is φ = 47073448.

The previous prime is 47073443. The next prime is 47073451. The reversal of 47073449 is 94437074.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28090000 + 18983449 = 5300^2 + 4357^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47073449 is a prime.

Together with 47073451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47073443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23536724 + 23536725.

It is an arithmetic number, because the mean of its divisors is an integer number (23536725).

Almost surely, 2^47073449 is an apocalyptic number.

It is an amenable number.

47073449 is a deficient number, since it is larger than the sum of its proper divisors (1).

47073449 is an equidigital number, since it uses as much as digits as its factorization.

47073449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 47073449 is about 6861.0093280799. The cubic root of 47073449 is about 361.0704992978.

The spelling of 47073449 in words is "forty-seven million, seventy-three thousand, four hundred forty-nine".