979633 has 4 divisors (see below), whose sum is σ = 989248. Its totient is φ = 970020.

The previous prime is 979567. The next prime is 979651. The reversal of 979633 is 336979.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 336979 = 41 ⋅8219.

It is a cyclic number.

It is not a de Polignac number, because 979633 - 2¹³ = 971441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 979592 and 979601.

It is not an unprimeable number, because it can be changed into a prime (979333) 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, 4653 + ... + 4858.

It is an arithmetic number, because the mean of its divisors is an integer number (247312).

2⁹⁷⁹⁶³³ is an apocalyptic number.

It is an amenable number.

979633 is a deficient number, since it is larger than the sum of its proper divisors (9615).

979633 is a wasteful number, since it uses less digits than its factorization.

979633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9614.

The product of its digits is 30618, while the sum is 37.

The square root of 979633 is about 989.7641133119. The cubic root of 979633 is about 99.3164380776.

It can be divided in two parts, 97 and 9633, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 979633 in words is "nine hundred seventy-nine thousand, six hundred thirty-three".