47015878 has 16 divisors (see below), whose sum is σ = 86798880. Its totient is φ = 18599616.

The previous prime is 47015867. The next prime is 47015879. The reversal of 47015878 is 87851074.

It is a super-2 number, since 2×47015878² = 4420985568221768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47015878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47015879) 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, 128983 + ... + 129346.

It is an arithmetic number, because the mean of its divisors is an integer number (5424930).

Almost surely, 2^47015878 is an apocalyptic number.

47015878 is a deficient number, since it is larger than the sum of its proper divisors (39783002).

47015878 is a wasteful number, since it uses less digits than its factorization.

47015878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258351.

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 47015878 is about 6856.8125247815. The cubic root of 47015878 is about 360.9232424033.

The spelling of 47015878 in words is "forty-seven million, fifteen thousand, eight hundred seventy-eight".