199475723 has 2 divisors, whose sum is σ = 199475724. Its totient is φ = 199475722.

The previous prime is 199475719. The next prime is 199475743. The reversal of 199475723 is 327574991.

199475723 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 199475723 - 2² = 199475719 is a prime.

It is not a weakly prime, because it can be changed into another prime (199475743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99737861 + 99737862.

It is an arithmetic number, because the mean of its divisors is an integer number (99737862).

Almost surely, 2^199475723 is an apocalyptic number.

199475723 is a deficient number, since it is larger than the sum of its proper divisors (1).

199475723 is an equidigital number, since it uses as much as digits as its factorization.

199475723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 476280, while the sum is 47.

The square root of 199475723 is about 14123.5874691949. The cubic root of 199475723 is about 584.2921020674.

The spelling of 199475723 in words is "one hundred ninety-nine million, four hundred seventy-five thousand, seven hundred twenty-three".