47935621 has 4 divisors (see below), whose sum is σ = 48074112. Its totient is φ = 47797132.

The previous prime is 47935607. The next prime is 47935627. The reversal of 47935621 is 12653974.

47935621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47935621 - 2⁷ = 47935493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47935627) 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 3 ways as a sum of consecutive naturals, for example, 68725 + ... + 69418.

It is an arithmetic number, because the mean of its divisors is an integer number (12018528).

Almost surely, 2^47935621 is an apocalyptic number.

It is an amenable number.

47935621 is a deficient number, since it is larger than the sum of its proper divisors (138491).

47935621 is a wasteful number, since it uses less digits than its factorization.

47935621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138490.

The product of its digits is 45360, while the sum is 37.

The square root of 47935621 is about 6923.5555172180. Note that the first 4 decimals coincide. The cubic root of 47935621 is about 363.2615675295.

It can be divided in two parts, 479 and 35621, that added together give a square (36100 = 190²).

The spelling of 47935621 in words is "forty-seven million, nine hundred thirty-five thousand, six hundred twenty-one".