47979798 has 16 divisors (see below), whose sum is σ = 96693696. Its totient is φ = 15870920.

The previous prime is 47979791. The next prime is 47979821. The reversal of 47979798 is 89797974.

47979798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×47979798² = 4604122032241608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47979791) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29736 + ... + 31307.

It is an arithmetic number, because the mean of its divisors is an integer number (6043356).

Almost surely, 2^47979798 is an apocalyptic number.

47979798 is an abundant number, since it is smaller than the sum of its proper divisors (48713898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47979798 is a wasteful number, since it uses less digits than its factorization.

47979798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61179.

The product of its digits is 8001504, while the sum is 60.

The square root of 47979798 is about 6926.7451230719. The cubic root of 47979798 is about 363.3731260366.

The spelling of 47979798 in words is "forty-seven million, nine hundred seventy-nine thousand, seven hundred ninety-eight".