99161764 has 27 divisors (see below), whose sum is σ = 188400513. Its totient is φ = 45647472.

The previous prime is 99161747. The next prime is 99161767. The reversal of 99161764 is 46716199.

It is a happy number.

The square root of 99161764 is 9958.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 14668900 + 84492864 = 3830^2 + 9192^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99161764.

It is not an unprimeable number, because it can be changed into a prime (99161767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 258717 + ... + 259099.

Almost surely, 2^99161764 is an apocalyptic number.

99161764 is the 9958-th square number.

It is an amenable number.

99161764 is a deficient number, since it is larger than the sum of its proper divisors (89238749).

99161764 is a wasteful number, since it uses less digits than its factorization.

99161764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 398 counting only the distinct ones).

The product of its digits is 81648, while the sum is 43.

The cubic root of 99161764 is about 462.8583270341.

The spelling of 99161764 in words is "ninety-nine million, one hundred sixty-one thousand, seven hundred sixty-four".