47207661 has 16 divisors (see below), whose sum is σ = 66479616. Its totient is φ = 29737136.

The previous prime is 47207653. The next prime is 47207689. The reversal of 47207661 is 16670274.

47207661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 47207661 - 2³ = 47207653 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47207561) 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 15 ways as a sum of consecutive naturals, for example, 1606 + ... + 9848.

It is an arithmetic number, because the mean of its divisors is an integer number (4154976).

Almost surely, 2^47207661 is an apocalyptic number.

It is an amenable number.

47207661 is a deficient number, since it is larger than the sum of its proper divisors (19271955).

47207661 is a wasteful number, since it uses less digits than its factorization.

47207661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8352.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 47207661 is about 6870.7831431359. The cubic root of 47207661 is about 361.4133253326.

The spelling of 47207661 in words is "forty-seven million, two hundred seven thousand, six hundred sixty-one".