47797838 has 16 divisors (see below), whose sum is σ = 79692336. Its totient is φ = 21315840.

The previous prime is 47797837. The next prime is 47797861. The reversal of 47797838 is 83879774.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a self number, because there is not a number n which added to its sum of digits gives 47797838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47797837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19331 + ... + 21662.

It is an arithmetic number, because the mean of its divisors is an integer number (4980771).

Almost surely, 2^47797838 is an apocalyptic number.

47797838 is a deficient number, since it is larger than the sum of its proper divisors (31894498).

47797838 is a wasteful number, since it uses less digits than its factorization.

47797838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41059.

The product of its digits is 2370816, while the sum is 53.

The square root of 47797838 is about 6913.5980502196. The cubic root of 47797838 is about 362.9131884679.

The spelling of 47797838 in words is "forty-seven million, seven hundred ninety-seven thousand, eight hundred thirty-eight".