979649 has 16 divisors (see below), whose sum is σ = 1149120. Its totient is φ = 826560.

The previous prime is 979567. The next prime is 979651. The reversal of 979649 is 946979.

It is a cyclic number.

It is not a de Polignac number, because 979649 - 2¹² = 975553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979549) 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 15 ways as a sum of consecutive naturals, for example, 11762 + ... + 11844.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2⁹⁷⁹⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

979649 is a deficient number, since it is larger than the sum of its proper divisors (169471).

979649 is a wasteful number, since it uses less digits than its factorization.

979649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160.

The product of its digits is 122472, while the sum is 44.

The square root of 979649 is about 989.7721960128. The cubic root of 979649 is about 99.3169787748.

The spelling of 979649 in words is "nine hundred seventy-nine thousand, six hundred forty-nine".