981067808 has 90 divisors (see below), whose sum is σ = 2273372829. Its totient is φ = 416736768.

The previous prime is 981067771. The next prime is 981067817. The reversal of 981067808 is 808760189.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 619611664 + 361456144 = 24892^2 + 19012^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=22148.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 8681960 + ... + 8682072.

Almost surely, 2^981067808 is an apocalyptic number.

981067808 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 981067808

981067808 is an abundant number, since it is smaller than the sum of its proper divisors (1292305021).

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

981067808 is an frugal number, since it uses more digits than its factorization.

981067808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 981067808 is about 31322.0019794393. The cubic root of 981067808 is about 993.6490197723.

The spelling of 981067808 in words is "nine hundred eighty-one million, sixty-seven thousand, eight hundred eight".