47905923 has 24 divisors (see below), whose sum is σ = 70345200. Its totient is φ = 28978560.

The previous prime is 47905909. The next prime is 47905927. The reversal of 47905923 is 32950974.

It is not a de Polignac number, because 47905923 - 2⁸ = 47905667 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (47905927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30153 + ... + 31701.

It is an arithmetic number, because the mean of its divisors is an integer number (2931050).

Almost surely, 2^47905923 is an apocalyptic number.

47905923 is a deficient number, since it is larger than the sum of its proper divisors (22439277).

47905923 is a wasteful number, since it uses less digits than its factorization.

47905923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639 (or 1626 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 47905923 is about 6921.4104776411. The cubic root of 47905923 is about 363.1865337622.

It can be divided in two parts, 47905 and 923, that added together give a triangular number (48828 = T₃₁₂).

The spelling of 47905923 in words is "forty-seven million, nine hundred five thousand, nine hundred twenty-three".