99729436 has 6 divisors (see below), whose sum is σ = 174526520. Its totient is φ = 49864716.

The previous prime is 99729419. The next prime is 99729437. The reversal of 99729436 is 63492799.

It is a self number, because there is not a number n which added to its sum of digits gives 99729436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99729437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12466176 + ... + 12466183.

Almost surely, 2^99729436 is an apocalyptic number.

It is an amenable number.

99729436 is a deficient number, since it is larger than the sum of its proper divisors (74797084).

99729436 is a wasteful number, since it uses less digits than its factorization.

99729436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24932363 (or 24932361 counting only the distinct ones).

The product of its digits is 734832, while the sum is 49.

The square root of 99729436 is about 9986.4626369901. The cubic root of 99729436 is about 463.7398896380.

The spelling of 99729436 in words is "ninety-nine million, seven hundred twenty-nine thousand, four hundred thirty-six".