47989970 has 32 divisors (see below), whose sum is σ = 99612288. Its totient is φ = 16305408.

The previous prime is 47989969. The next prime is 47989979. The reversal of 47989970 is 7998974.

It is not an unprimeable number, because it can be changed into a prime (47989979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4877 + ... + 10943.

It is an arithmetic number, because the mean of its divisors is an integer number (3112884).

Almost surely, 2^47989970 is an apocalyptic number.

47989970 is an abundant number, since it is smaller than the sum of its proper divisors (51622318).

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

47989970 is a wasteful number, since it uses less digits than its factorization.

47989970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6194.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The square root of 47989970 is about 6927.4793395578. The cubic root of 47989970 is about 363.3988033037.

The spelling of 47989970 in words is "forty-seven million, nine hundred eighty-nine thousand, nine hundred seventy".