47477663 has 4 divisors (see below), whose sum is σ = 47493648. Its totient is φ = 47461680.

The previous prime is 47477641. The next prime is 47477687. The reversal of 47477663 is 36677474.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47477663 - 2¹² = 47473567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47477603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2078 + ... + 9963.

It is an arithmetic number, because the mean of its divisors is an integer number (11873412).

Almost surely, 2^47477663 is an apocalyptic number.

47477663 is a deficient number, since it is larger than the sum of its proper divisors (15985).

47477663 is a wasteful number, since it uses less digits than its factorization.

47477663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15984.

The product of its digits is 592704, while the sum is 44.

The square root of 47477663 is about 6890.4036891898. The cubic root of 47477663 is about 362.1010447149.

The spelling of 47477663 in words is "forty-seven million, four hundred seventy-seven thousand, six hundred sixty-three".