47871890 has 32 divisors (see below), whose sum is σ = 94291776. Its totient is φ = 17354560.

The previous prime is 47871883. The next prime is 47871899. The reversal of 47871890 is 9817874.

It is not an unprimeable number, because it can be changed into a prime (47871899) 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, 61544 + ... + 62316.

It is an arithmetic number, because the mean of its divisors is an integer number (2946618).

Almost surely, 2^47871890 is an apocalyptic number.

47871890 is a deficient number, since it is larger than the sum of its proper divisors (46419886).

47871890 is a wasteful number, since it uses less digits than its factorization.

47871890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 47871890 is about 6918.9515101639. The cubic root of 47871890 is about 363.1005092189.

The spelling of 47871890 in words is "forty-seven million, eight hundred seventy-one thousand, eight hundred ninety".