47748870 has 96 divisors (see below), whose sum is σ = 137434752. Its totient is φ = 11425536.

The previous prime is 47748853. The next prime is 47748871. The reversal of 47748870 is 7884774.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47748871) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42739 + ... + 43841.

It is an arithmetic number, because the mean of its divisors is an integer number (1431612).

Almost surely, 2^47748870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47748870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68717376).

47748870 is an abundant number, since it is smaller than the sum of its proper divisors (89685882).

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

47748870 is a wasteful number, since it uses less digits than its factorization.

47748870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166 (or 1163 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 45.

The square root of 47748870 is about 6910.0557161285. The cubic root of 47748870 is about 362.7892135076.

The spelling of 47748870 in words is "forty-seven million, seven hundred forty-eight thousand, eight hundred seventy".