979477 has 4 divisors (see below), whose sum is σ = 995596. Its totient is φ = 963360.

The previous prime is 979471. The next prime is 979481. The reversal of 979477 is 774979.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 774979 = 17 ⋅45587.

It can be written as a sum of positive squares in 2 ways, for example, as 194481 + 784996 = 441^2 + 886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-979477 is a prime.

It is a Duffinian number.

979477 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979471) 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 3 ways as a sum of consecutive naturals, for example, 7968 + ... + 8089.

It is an arithmetic number, because the mean of its divisors is an integer number (248899).

2⁹⁷⁹⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

979477 is a deficient number, since it is larger than the sum of its proper divisors (16119).

979477 is a wasteful number, since it uses less digits than its factorization.

979477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16118.

The product of its digits is 111132, while the sum is 43.

The square root of 979477 is about 989.6853035182. The cubic root of 979477 is about 99.3111659717.

The spelling of 979477 in words is "nine hundred seventy-nine thousand, four hundred seventy-seven".