99126780 has 96 divisors (see below), whose sum is σ = 292723200. Its totient is φ = 25014528.

The previous prime is 99126767. The next prime is 99126823. The reversal of 99126780 is 8762199.

It is a super-2 number, since 2×99126780² = 19652237026336800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150091 + ... + 150749.

It is an arithmetic number, because the mean of its divisors is an integer number (3049200).

Almost surely, 2^99126780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99126780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146361600).

99126780 is an abundant number, since it is smaller than the sum of its proper divisors (193596420).

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

99126780 is a wasteful number, since it uses less digits than its factorization.

99126780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 99126780 is about 9956.2432674177. The cubic root of 99126780 is about 462.8038889131.

The spelling of 99126780 in words is "ninety-nine million, one hundred twenty-six thousand, seven hundred eighty".