47081947 has 12 divisors (see below), whose sum is σ = 52960600. Its totient is φ = 41801760.

The previous prime is 47081939. The next prime is 47081971. The reversal of 47081947 is 74918074.

It is not a de Polignac number, because 47081947 - 2³ = 47081939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47081977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 679 + ... + 9727.

Almost surely, 2^47081947 is an apocalyptic number.

47081947 is a deficient number, since it is larger than the sum of its proper divisors (5878653).

47081947 is a wasteful number, since it uses less digits than its factorization.

47081947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9114 (or 9103 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 47081947 is about 6861.6285967691. The cubic root of 47081947 is about 361.0922255756.

The spelling of 47081947 in words is "forty-seven million, eighty-one thousand, nine hundred forty-seven".