47688890 has 16 divisors (see below), whose sum is σ = 89572608. Its totient is φ = 18246096.

The previous prime is 47688877. The next prime is 47688911. The reversal of 47688890 is 9888674.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103442 + ... + 103901.

It is an arithmetic number, because the mean of its divisors is an integer number (5598288).

Almost surely, 2^47688890 is an apocalyptic number.

47688890 is a deficient number, since it is larger than the sum of its proper divisors (41883718).

47688890 is a wasteful number, since it uses less digits than its factorization.

47688890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207373.

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 47688890 is about 6905.7143004906. The cubic root of 47688890 is about 362.6372433162.

The spelling of 47688890 in words is "forty-seven million, six hundred eighty-eight thousand, eight hundred ninety".