99764534 has 12 divisors (see below), whose sum is σ = 158968284. Its totient is φ = 46947744.

The previous prime is 99764527. The next prime is 99764591. The reversal of 99764534 is 43546799.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85724 + ... + 86879.

It is an arithmetic number, because the mean of its divisors is an integer number (13247357).

Almost surely, 2^99764534 is an apocalyptic number.

99764534 is a deficient number, since it is larger than the sum of its proper divisors (59203750).

99764534 is a wasteful number, since it uses less digits than its factorization.

99764534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172639 (or 172622 counting only the distinct ones).

The product of its digits is 816480, while the sum is 47.

The square root of 99764534 is about 9988.2197612988. The cubic root of 99764534 is about 463.7942849241.

The spelling of 99764534 in words is "ninety-nine million, seven hundred sixty-four thousand, five hundred thirty-four".