981798801 has 4 divisors (see below), whose sum is σ = 1309065072. Its totient is φ = 654532532.

The previous prime is 981798743. The next prime is 981798817. The reversal of 981798801 is 108897189.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 981798801 - 2⁹ = 981798289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (981798821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163633131 + ... + 163633136.

It is an arithmetic number, because the mean of its divisors is an integer number (327266268).

Almost surely, 2^981798801 is an apocalyptic number.

It is an amenable number.

981798801 is a deficient number, since it is larger than the sum of its proper divisors (327266271).

981798801 is a wasteful number, since it uses less digits than its factorization.

981798801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327266270.

The product of its (nonzero) digits is 290304, while the sum is 51.

The square root of 981798801 is about 31333.6688084878. The cubic root of 981798801 is about 993.8957475878.

The spelling of 981798801 in words is "nine hundred eighty-one million, seven hundred ninety-eight thousand, eight hundred one".