99573780 has 48 divisors (see below), whose sum is σ = 280062720. Its totient is φ = 26433408.

The previous prime is 99573731. The next prime is 99573781. The reversal of 99573780 is 8737599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99573781) 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 15 ways as a sum of consecutive naturals, for example, 10117 + ... + 17363.

It is an arithmetic number, because the mean of its divisors is an integer number (5834640).

Almost surely, 2^99573780 is an apocalyptic number.

It is an amenable number.

99573780 is an abundant number, since it is smaller than the sum of its proper divisors (180488940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99573780 is a wasteful number, since it uses less digits than its factorization.

99573780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7488 (or 7486 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 48.

The square root of 99573780 is about 9978.6662435418. Note that the first 3 decimals coincide. The cubic root of 99573780 is about 463.4984982420.

The spelling of 99573780 in words is "ninety-nine million, five hundred seventy-three thousand, seven hundred eighty".