979655 has 4 divisors (see below), whose sum is σ = 1175592. Its totient is φ = 783720.

The previous prime is 979651. The next prime is 979691. The reversal of 979655 is 556979.

979655 = 166² + 167² + ... + 195².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 556979 = 43 ⋅12953.

It is not a de Polignac number, because 979655 - 2² = 979651 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 (979651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97961 + ... + 97970.

It is an arithmetic number, because the mean of its divisors is an integer number (293898).

2⁹⁷⁹⁶⁵⁵ is an apocalyptic number.

979655 is a deficient number, since it is larger than the sum of its proper divisors (195937).

979655 is a wasteful number, since it uses less digits than its factorization.

979655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195936.

The product of its digits is 85050, while the sum is 41.

The square root of 979655 is about 989.7752270086. The cubic root of 979655 is about 99.3171815347.

The spelling of 979655 in words is "nine hundred seventy-nine thousand, six hundred fifty-five".