47016981 has 24 divisors (see below), whose sum is σ = 75142080. Its totient is φ = 28089600.

The previous prime is 47016979. The next prime is 47017007. The reversal of 47016981 is 18961074.

47016981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47016981 - 2¹ = 47016979 is a prime.

It is a super-2 number, since 2×47016981² = 4421193004708722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47016941) 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 23 ways as a sum of consecutive naturals, for example, 3685 + ... + 10373.

It is an arithmetic number, because the mean of its divisors is an integer number (3130920).

Almost surely, 2^47016981 is an apocalyptic number.

It is an amenable number.

47016981 is a deficient number, since it is larger than the sum of its proper divisors (28125099).

47016981 is a wasteful number, since it uses less digits than its factorization.

47016981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6777 (or 6774 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 47016981 is about 6856.8929552677. The cubic root of 47016981 is about 360.9260648202.

The spelling of 47016981 in words is "forty-seven million, sixteen thousand, nine hundred eighty-one".