47290723 has 2 divisors, whose sum is σ = 47290724. Its totient is φ = 47290722.

The previous prime is 47290709. The next prime is 47290739. The reversal of 47290723 is 32709274.

47290723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47290723 - 2¹³ = 47282531 is a prime.

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

It is not a weakly prime, because it can be changed into another prime (47290123) 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 as a sum of consecutive naturals, namely, 23645361 + 23645362.

It is an arithmetic number, because the mean of its divisors is an integer number (23645362).

Almost surely, 2^47290723 is an apocalyptic number.

47290723 is a deficient number, since it is larger than the sum of its proper divisors (1).

47290723 is an equidigital number, since it uses as much as digits as its factorization.

47290723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 47290723 is about 6876.8250668459. The cubic root of 47290723 is about 361.6251703566.

Adding to 47290723 its reverse (32709274), we get a palindrome (79999997).

The spelling of 47290723 in words is "forty-seven million, two hundred ninety thousand, seven hundred twenty-three".