47044447 has 2 divisors, whose sum is σ = 47044448. Its totient is φ = 47044446.

The previous prime is 47044429. The next prime is 47044511. The reversal of 47044447 is 74444074.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47044447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47044147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23522223 + 23522224.

It is an arithmetic number, because the mean of its divisors is an integer number (23522224).

Almost surely, 2^47044447 is an apocalyptic number.

47044447 is a deficient number, since it is larger than the sum of its proper divisors (1).

47044447 is an equidigital number, since it uses as much as digits as its factorization.

47044447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50176, while the sum is 34.

The square root of 47044447 is about 6858.8954650148. The cubic root of 47044447 is about 360.9963320965.

The spelling of 47044447 in words is "forty-seven million, forty-four thousand, four hundred forty-seven".