988805826 has 16 divisors (see below), whose sum is σ = 2197346400. Its totient is φ = 329601924.

The previous prime is 988805821. The next prime is 988805827. The reversal of 988805826 is 628508889.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 18311219 = 988805826 / (9 + 8 + 8 + 8 + 0 + 5 + 8 + 2 + 6).

It is not an unprimeable number, because it can be changed into a prime (988805821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9155556 + ... + 9155663.

It is an arithmetic number, because the mean of its divisors is an integer number (137334150).

Almost surely, 2^988805826 is an apocalyptic number.

988805826 is an abundant number, since it is smaller than the sum of its proper divisors (1208540574).

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

988805826 is a wasteful number, since it uses less digits than its factorization.

988805826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18311230 (or 18311224 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 54.

The square root of 988805826 is about 31445.2830484955. The cubic root of 988805826 is about 996.2545981452.

The spelling of 988805826 in words is "nine hundred eighty-eight million, eight hundred five thousand, eight hundred twenty-six".