47163870 has 96 divisors (see below), whose sum is σ = 137041632. Its totient is φ = 11601792.

The previous prime is 47163847. The next prime is 47163881. The reversal of 47163870 is 7836174.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30844 + ... + 32336.

It is an arithmetic number, because the mean of its divisors is an integer number (1427517).

Almost surely, 2^47163870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47163870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68520816).

47163870 is an abundant number, since it is smaller than the sum of its proper divisors (89877762).

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

47163870 is a wasteful number, since it uses less digits than its factorization.

47163870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 47163870 is about 6867.5956491337. The cubic root of 47163870 is about 361.3015387649.

The spelling of 47163870 in words is "forty-seven million, one hundred sixty-three thousand, eight hundred seventy".