47749864 has 16 divisors (see below), whose sum is σ = 89655300. Its totient is φ = 23841792.

The previous prime is 47749853. The next prime is 47749883. The reversal of 47749864 is 46894774.

47749864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 47748100 + 1764 = 6910^2 + 42^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2632 + ... + 10120.

Almost surely, 2^47749864 is an apocalyptic number.

It is an amenable number.

47749864 is a deficient number, since it is larger than the sum of its proper divisors (41905436).

47749864 is a wasteful number, since it uses less digits than its factorization.

47749864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8292 (or 8288 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 49.

The square root of 47749864 is about 6910.1276399210. The cubic root of 47749864 is about 362.7917309143.

The spelling of 47749864 in words is "forty-seven million, seven hundred forty-nine thousand, eight hundred sixty-four".