47079816 has 64 divisors (see below), whose sum is σ = 136442880. Its totient is φ = 13258560.

The previous prime is 47079811. The next prime is 47079839. The reversal of 47079816 is 61897074.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (47079811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9955 + ... + 13901.

It is an arithmetic number, because the mean of its divisors is an integer number (2131920).

Almost surely, 2^47079816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47079816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68221440).

47079816 is an abundant number, since it is smaller than the sum of its proper divisors (89363064).

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

47079816 is a wasteful number, since it uses less digits than its factorization.

47079816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4034 (or 4030 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 47079816 is about 6861.4733111774. The cubic root of 47079816 is about 361.0867776336.

It can be divided in two parts, 47079 and 816, that added together give a triangular number (47895 = T₃₀₉).

The spelling of 47079816 in words is "forty-seven million, seventy-nine thousand, eight hundred sixteen".