47723863 has 4 divisors (see below), whose sum is σ = 52062408. Its totient is φ = 43385320.

The previous prime is 47723803. The next prime is 47723867. The reversal of 47723863 is 36832774.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-47723863 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 (47723867) 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, 2169256 + ... + 2169277.

It is an arithmetic number, because the mean of its divisors is an integer number (13015602).

Almost surely, 2^47723863 is an apocalyptic number.

47723863 is a deficient number, since it is larger than the sum of its proper divisors (4338545).

47723863 is a wasteful number, since it uses less digits than its factorization.

47723863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4338544.

The product of its digits is 169344, while the sum is 40.

The square root of 47723863 is about 6908.2460147276. The cubic root of 47723863 is about 362.7258692226.

The spelling of 47723863 in words is "forty-seven million, seven hundred twenty-three thousand, eight hundred sixty-three".