980779 has 4 divisors (see below), whose sum is σ = 987184. Its totient is φ = 974376.

The previous prime is 980773. The next prime is 980801. The reversal of 980779 is 977089.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-980779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (980773) 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, 2967 + ... + 3280.

It is an arithmetic number, because the mean of its divisors is an integer number (246796).

2⁹⁸⁰⁷⁷⁹ is an apocalyptic number.

980779 is a deficient number, since it is larger than the sum of its proper divisors (6405).

980779 is a wasteful number, since it uses less digits than its factorization.

980779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6404.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 980779 is about 990.3428699193. The cubic root of 980779 is about 99.3551506312.

The spelling of 980779 in words is "nine hundred eighty thousand, seven hundred seventy-nine".