47430923 has 4 divisors (see below), whose sum is σ = 47504880. Its totient is φ = 47356968.

The previous prime is 47430893. The next prime is 47430937. The reversal of 47430923 is 32903474.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47430923 - 2⁸ = 47430667 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47430923.

It is not an unprimeable number, because it can be changed into a prime (47430223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36008 + ... + 37301.

It is an arithmetic number, because the mean of its divisors is an integer number (11876220).

Almost surely, 2^47430923 is an apocalyptic number.

47430923 is a deficient number, since it is larger than the sum of its proper divisors (73957).

47430923 is an equidigital number, since it uses as much as digits as its factorization.

47430923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73956.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 47430923 is about 6887.0111804759. The cubic root of 47430923 is about 361.9821806802.

The spelling of 47430923 in words is "forty-seven million, four hundred thirty thousand, nine hundred twenty-three".