979771 has 4 divisors (see below), whose sum is σ = 1055152. Its totient is φ = 904392.

The previous prime is 979757. The next prime is 979787. The reversal of 979771 is 177979.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 979771 - 2¹¹ = 977723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979171) 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, 37671 + ... + 37696.

It is an arithmetic number, because the mean of its divisors is an integer number (263788).

2⁹⁷⁹⁷⁷¹ is an apocalyptic number.

979771 is a deficient number, since it is larger than the sum of its proper divisors (75381).

979771 is a wasteful number, since it uses less digits than its factorization.

979771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75380.

The product of its digits is 27783, while the sum is 40.

The square root of 979771 is about 989.8338244372. The cubic root of 979771 is about 99.3211013971.

The spelling of 979771 in words is "nine hundred seventy-nine thousand, seven hundred seventy-one".