47861970 has 64 divisors (see below), whose sum is σ = 130999680. Its totient is φ = 11086848.

The previous prime is 47861917. The next prime is 47861971. The reversal of 47861970 is 7916874.

It is not an unprimeable number, because it can be changed into a prime (47861971) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3021 + ... + 10239.

It is an arithmetic number, because the mean of its divisors is an integer number (2046870).

Almost surely, 2^47861970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47861970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65499840).

47861970 is an abundant number, since it is smaller than the sum of its proper divisors (83137710).

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

47861970 is a wasteful number, since it uses less digits than its factorization.

47861970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7259.

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

The square root of 47861970 is about 6918.2346013994. The cubic root of 47861970 is about 363.0754269568.

The spelling of 47861970 in words is "forty-seven million, eight hundred sixty-one thousand, nine hundred seventy".