47770646 has 64 divisors (see below), whose sum is σ = 96297984. Its totient is φ = 17203200.

The previous prime is 47770643. The next prime is 47770687. The reversal of 47770646 is 64607774.

47770646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47770643) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 185750 + ... + 186006.

It is an arithmetic number, because the mean of its divisors is an integer number (1504656).

Almost surely, 2^47770646 is an apocalyptic number.

47770646 is an abundant number, since it is smaller than the sum of its proper divisors (48527338).

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

47770646 is a wasteful number, since it uses less digits than its factorization.

47770646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365.

The product of its (nonzero) digits is 197568, while the sum is 41.

The square root of 47770646 is about 6911.6312112265. The cubic root of 47770646 is about 362.8443554566.

The spelling of 47770646 in words is "forty-seven million, seven hundred seventy thousand, six hundred forty-six".