99577223 has 4 divisors (see below), whose sum is σ = 99664008. Its totient is φ = 99490440.

The previous prime is 99577187. The next prime is 99577241. The reversal of 99577223 is 32277599.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32277599 = 19 ⋅1698821.

It is a cyclic number.

It is not a de Polignac number, because 99577223 - 2¹² = 99573127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99570223) 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, 41648 + ... + 43973.

It is an arithmetic number, because the mean of its divisors is an integer number (24916002).

Almost surely, 2^99577223 is an apocalyptic number.

99577223 is a deficient number, since it is larger than the sum of its proper divisors (86785).

99577223 is a wasteful number, since it uses less digits than its factorization.

99577223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86784.

The product of its digits is 238140, while the sum is 44.

The square root of 99577223 is about 9978.8387600963. The cubic root of 99577223 is about 463.5038403677.

The spelling of 99577223 in words is "ninety-nine million, five hundred seventy-seven thousand, two hundred twenty-three".