879921063 has 20 divisors (see below), whose sum is σ = 1502229520. Its totient is φ = 502811712.

The previous prime is 879921061. The next prime is 879921067. The reversal of 879921063 is 360129978.

It is not a de Polignac number, because 879921063 - 2¹ = 879921061 is a prime.

It is a super-2 number, since 2×879921063² = 1548522154222099938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879921061) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 775378 + ... + 776511.

It is an arithmetic number, because the mean of its divisors is an integer number (75111476).

Almost surely, 2^879921063 is an apocalyptic number.

879921063 is a deficient number, since it is larger than the sum of its proper divisors (622308457).

879921063 is a wasteful number, since it uses less digits than its factorization.

879921063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551908 (or 1551899 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 879921063 is about 29663.4634356813. The cubic root of 879921063 is about 958.2553175020.

The spelling of 879921063 in words is "eight hundred seventy-nine million, nine hundred twenty-one thousand, sixty-three".