47781963 has 6 divisors (see below), whose sum is σ = 69018404. Its totient is φ = 31854636.

The previous prime is 47781961. The next prime is 47782013. The reversal of 47781963 is 36918774.

It is not a de Polignac number, because 47781963 - 2¹ = 47781961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47781961) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2654545 + ... + 2654562.

Almost surely, 2^47781963 is an apocalyptic number.

47781963 is a deficient number, since it is larger than the sum of its proper divisors (21236441).

47781963 is a wasteful number, since it uses less digits than its factorization.

47781963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5309113 (or 5309110 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 47781963 is about 6912.4498551527. The cubic root of 47781963 is about 362.8730061427.

The spelling of 47781963 in words is "forty-seven million, seven hundred eighty-one thousand, nine hundred sixty-three".