979777 has 8 divisors (see below), whose sum is σ = 1048320. Its totient is φ = 913440.

The previous prime is 979757. The next prime is 979787. The reversal of 979777 is 777979.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 979777 - 2¹⁹ = 455489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424 + ... + 1462.

It is an arithmetic number, because the mean of its divisors is an integer number (131040).

2⁹⁷⁹⁷⁷⁷ is an apocalyptic number.

It is an amenable number.

979777 is a deficient number, since it is larger than the sum of its proper divisors (68543).

979777 is a wasteful number, since it uses less digits than its factorization.

979777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103.

The product of its digits is 194481, while the sum is 46.

The square root of 979777 is about 989.8368552443. The cubic root of 979777 is about 99.3213041402.

The spelling of 979777 in words is "nine hundred seventy-nine thousand, seven hundred seventy-seven".