47873864 has 8 divisors (see below), whose sum is σ = 89763510. Its totient is φ = 23936928.

The previous prime is 47873821. The next prime is 47873869. The reversal of 47873864 is 46837874.

It can be written as a sum of positive squares in only one way, i.e., 46812964 + 1060900 = 6842^2 + 1030^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (47873869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2992109 + ... + 2992124.

Almost surely, 2^47873864 is an apocalyptic number.

It is an amenable number.

47873864 is a deficient number, since it is larger than the sum of its proper divisors (41889646).

47873864 is a wasteful number, since it uses less digits than its factorization.

47873864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5984239 (or 5984235 counting only the distinct ones).

The product of its digits is 903168, while the sum is 47.

The square root of 47873864 is about 6919.0941603652. The cubic root of 47873864 is about 363.1054999734.

The spelling of 47873864 in words is "forty-seven million, eight hundred seventy-three thousand, eight hundred sixty-four".