99770044 has 48 divisors (see below), whose sum is σ = 200019456. Its totient is φ = 43102400.

The previous prime is 99770017. The next prime is 99770053. The reversal of 99770044 is 44007799.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 99769979 and 99770006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314574 + ... + 314890.

It is an arithmetic number, because the mean of its divisors is an integer number (4167072).

Almost surely, 2^99770044 is an apocalyptic number.

It is an amenable number.

99770044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

99770044 is a wasteful number, since it uses less digits than its factorization.

99770044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 99770044 is about 9988.4955824188. The cubic root of 99770044 is about 463.8028232272.

The spelling of 99770044 in words is "ninety-nine million, seven hundred seventy thousand, forty-four".