980208077 has 4 divisors (see below), whose sum is σ = 1001063616. Its totient is φ = 959352540.

The previous prime is 980208067. The next prime is 980208109. The reversal of 980208077 is 770802089.

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 980208077 - 2⁶ = 980208013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980208007) 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 3 ways as a sum of consecutive naturals, for example, 10427699 + ... + 10427792.

It is an arithmetic number, because the mean of its divisors is an integer number (250265904).

Almost surely, 2^980208077 is an apocalyptic number.

It is an amenable number.

980208077 is a deficient number, since it is larger than the sum of its proper divisors (20855539).

980208077 is a wasteful number, since it uses less digits than its factorization.

980208077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20855538.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 980208077 is about 31308.2748965829. The cubic root of 980208077 is about 993.3586828834.

The spelling of 980208077 in words is "nine hundred eighty million, two hundred eight thousand, seventy-seven".