980723881 has 4 divisors (see below), whose sum is σ = 981045072. Its totient is φ = 980402692.

The previous prime is 980723851. The next prime is 980723951. The reversal of 980723881 is 188327089.

980723881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 980723881 - 2¹⁹ = 980199593 is a prime.

It is a super-2 number, since 2×980723881² = 1923638661527404322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (980723831) 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, 155971 + ... + 162136.

It is an arithmetic number, because the mean of its divisors is an integer number (245261268).

Almost surely, 2^980723881 is an apocalyptic number.

It is an amenable number.

980723881 is a deficient number, since it is larger than the sum of its proper divisors (321191).

980723881 is a wasteful number, since it uses less digits than its factorization.

980723881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321190.

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 980723881 is about 31316.5113159177. The cubic root of 980723881 is about 993.5328936950.

The spelling of 980723881 in words is "nine hundred eighty million, seven hundred twenty-three thousand, eight hundred eighty-one".