47940923 has 2 divisors, whose sum is σ = 47940924. Its totient is φ = 47940922.

The previous prime is 47940917. The next prime is 47940967. The reversal of 47940923 is 32904974.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47940923 - 2⁶ = 47940859 is a prime.

It is not a weakly prime, because it can be changed into another prime (47940983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23970461 + 23970462.

It is an arithmetic number, because the mean of its divisors is an integer number (23970462).

Almost surely, 2^47940923 is an apocalyptic number.

47940923 is a deficient number, since it is larger than the sum of its proper divisors (1).

47940923 is an equidigital number, since it uses as much as digits as its factorization.

47940923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 47940923 is about 6923.9384023834. The cubic root of 47940923 is about 363.2749600880.

The spelling of 47940923 in words is "forty-seven million, nine hundred forty thousand, nine hundred twenty-three".