47621953 has 4 divisors (see below), whose sum is σ = 47636928. Its totient is φ = 47606980.

The previous prime is 47621939. The next prime is 47621969. The reversal of 47621953 is 35912674.

47621953 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 a de Polignac number, because none of the positive numbers 2^k-47621953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47621993) 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, 613 + ... + 9778.

It is an arithmetic number, because the mean of its divisors is an integer number (11909232).

Almost surely, 2^47621953 is an apocalyptic number.

It is an amenable number.

47621953 is a deficient number, since it is larger than the sum of its proper divisors (14975).

47621953 is a wasteful number, since it uses less digits than its factorization.

47621953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14974.

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

The square root of 47621953 is about 6900.8661050625. The cubic root of 47621953 is about 362.4674957776.

The spelling of 47621953 in words is "forty-seven million, six hundred twenty-one thousand, nine hundred fifty-three".