979487 has 4 divisors (see below), whose sum is σ = 987096. Its totient is φ = 971880.

The previous prime is 979481. The next prime is 979519. The reversal of 979487 is 784979.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784979 = 13 ⋅60383.

It is a cyclic number.

It is not a de Polignac number, because 979487 - 2⁴ = 979471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 979487.

It is not an unprimeable number, because it can be changed into a prime (979481) 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, 3608 + ... + 3869.

It is an arithmetic number, because the mean of its divisors is an integer number (246774).

2⁹⁷⁹⁴⁸⁷ is an apocalyptic number.

979487 is a deficient number, since it is larger than the sum of its proper divisors (7609).

979487 is a wasteful number, since it uses less digits than its factorization.

979487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7608.

The product of its digits is 127008, while the sum is 44.

The square root of 979487 is about 989.6903556163. The cubic root of 979487 is about 99.3115039440.

The spelling of 979487 in words is "nine hundred seventy-nine thousand, four hundred eighty-seven".