47790690 has 32 divisors (see below), whose sum is σ = 115093440. Its totient is φ = 12700224.

The previous prime is 47790647. The next prime is 47790703. The reversal of 47790690 is 9609774.

47790690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×47790690² = 4567900101352200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6616 + ... + 11804.

It is an arithmetic number, because the mean of its divisors is an integer number (3596670).

Almost surely, 2^47790690 is an apocalyptic number.

47790690 is an abundant number, since it is smaller than the sum of its proper divisors (67302750).

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

47790690 is a wasteful number, since it uses less digits than its factorization.

47790690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5506.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 47790690 is about 6913.0810786508. The cubic root of 47790690 is about 362.8950967654.

The spelling of 47790690 in words is "forty-seven million, seven hundred ninety thousand, six hundred ninety".