47814778 has 32 divisors (see below), whose sum is σ = 83436480. Its totient is φ = 20309760.

The previous prime is 47814731. The next prime is 47814779. The reversal of 47814778 is 87741874.

It is not an unprimeable number, because it can be changed into a prime (47814779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64333 + ... + 65071.

It is an arithmetic number, because the mean of its divisors is an integer number (2607390).

Almost surely, 2^47814778 is an apocalyptic number.

47814778 is a deficient number, since it is larger than the sum of its proper divisors (35621702).

47814778 is a wasteful number, since it uses less digits than its factorization.

47814778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942.

The product of its digits is 351232, while the sum is 46.

The square root of 47814778 is about 6914.8230635353. The cubic root of 47814778 is about 362.9560566780.

It can be divided in two parts, 4781 and 4778, that added together give a palindrome (9559).

The spelling of 47814778 in words is "forty-seven million, eight hundred fourteen thousand, seven hundred seventy-eight".