47742923 has 2 divisors, whose sum is σ = 47742924. Its totient is φ = 47742922.

The previous prime is 47742911. The next prime is 47742941. The reversal of 47742923 is 32924774.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47742923 - 2⁴ = 47742907 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (47747923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23871461 + 23871462.

It is an arithmetic number, because the mean of its divisors is an integer number (23871462).

Almost surely, 2^47742923 is an apocalyptic number.

47742923 is a deficient number, since it is larger than the sum of its proper divisors (1).

47742923 is an equidigital number, since it uses as much as digits as its factorization.

47742923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 38.

The square root of 47742923 is about 6909.6253878195. The cubic root of 47742923 is about 362.7741513918.

The spelling of 47742923 in words is "forty-seven million, seven hundred forty-two thousand, nine hundred twenty-three".