99705223 has 2 divisors, whose sum is σ = 99705224. Its totient is φ = 99705222.

The previous prime is 99705209. The next prime is 99705239. The reversal of 99705223 is 32250799.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99705223 - 2⁵ = 99705191 is a prime.

It is a super-2 number, since 2×99705223² = 19882262986959458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99705523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49852611 + 49852612.

It is an arithmetic number, because the mean of its divisors is an integer number (49852612).

Almost surely, 2^99705223 is an apocalyptic number.

99705223 is a deficient number, since it is larger than the sum of its proper divisors (1).

99705223 is an equidigital number, since it uses as much as digits as its factorization.

99705223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 99705223 is about 9985.2502722766. The cubic root of 99705223 is about 463.7023566112.

The spelling of 99705223 in words is "ninety-nine million, seven hundred five thousand, two hundred twenty-three".