47004457 has 2 divisors, whose sum is σ = 47004458. Its totient is φ = 47004456.

The previous prime is 47004449. The next prime is 47004469. The reversal of 47004457 is 75440074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46090521 + 913936 = 6789^2 + 956^2 .

It is a cyclic number.

It is not a de Polignac number, because 47004457 - 2³ = 47004449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47004487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23502228 + 23502229.

It is an arithmetic number, because the mean of its divisors is an integer number (23502229).

Almost surely, 2^47004457 is an apocalyptic number.

It is an amenable number.

47004457 is a deficient number, since it is larger than the sum of its proper divisors (1).

47004457 is an equidigital number, since it uses as much as digits as its factorization.

47004457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 47004457 is about 6855.9796528286. The cubic root of 47004457 is about 360.8940151269.

The spelling of 47004457 in words is "forty-seven million, four thousand, four hundred fifty-seven".