988887722 has 32 divisors (see below), whose sum is σ = 1598259600. Its totient is φ = 457228288.

The previous prime is 988887721. The next prime is 988887751. The reversal of 988887722 is 227788889.

It can be written as a sum of positive squares in 8 ways, for example, as 698492041 + 290395681 = 26429^2 + 17041^2 .

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (988887721) by changing a digit.

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, 522554 + ... + 524442.

Almost surely, 2^988887722 is an apocalyptic number.

988887722 is a deficient number, since it is larger than the sum of its proper divisors (609371878).

988887722 is a wasteful number, since it uses less digits than its factorization.

988887722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170.

The product of its digits is 7225344, while the sum is 59.

The square root of 988887722 is about 31446.5852200203. The cubic root of 988887722 is about 996.2821016961.

The spelling of 988887722 in words is "nine hundred eighty-eight million, eight hundred eighty-seven thousand, seven hundred twenty-two".