47684090 has 16 divisors (see below), whose sum is σ = 86220288. Its totient is φ = 18987216.

The previous prime is 47684041. The next prime is 47684093. The reversal of 47684090 is 9048674.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (47684093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8462 + ... + 12921.

It is an arithmetic number, because the mean of its divisors is an integer number (5388768).

Almost surely, 2^47684090 is an apocalyptic number.

47684090 is a deficient number, since it is larger than the sum of its proper divisors (38536198).

47684090 is a wasteful number, since it uses less digits than its factorization.

47684090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21613.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 47684090 is about 6905.3667534752. The cubic root of 47684090 is about 362.6250761415.

The spelling of 47684090 in words is "forty-seven million, six hundred eighty-four thousand, ninety".