99217736 has 8 divisors (see below), whose sum is σ = 186033270. Its totient is φ = 49608864.

The previous prime is 99217693. The next prime is 99217747. The reversal of 99217736 is 63771299.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 93973636 + 5244100 = 9694^2 + 2290^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6201101 + ... + 6201116.

Almost surely, 2^99217736 is an apocalyptic number.

It is an amenable number.

99217736 is a deficient number, since it is larger than the sum of its proper divisors (86815534).

99217736 is a wasteful number, since it uses less digits than its factorization.

99217736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12402223 (or 12402219 counting only the distinct ones).

The product of its digits is 142884, while the sum is 44.

The square root of 99217736 is about 9960.8100072233. The cubic root of 99217736 is about 462.9453976694.

The spelling of 99217736 in words is "ninety-nine million, two hundred seventeen thousand, seven hundred thirty-six".