879722 has 4 divisors (see below), whose sum is σ = 1319586. Its totient is φ = 439860.

The previous prime is 879721. The next prime is 879743. The reversal of 879722 is 227978.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 227978 = 2 ⋅113989.

It can be written as a sum of positive squares in only one way, i.e., 790321 + 89401 = 889^2 + 299^2 .

It is not an unprimeable number, because it can be changed into a prime (879721) 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 as a sum of consecutive naturals, namely, 219929 + ... + 219932.

2⁸⁷⁹⁷²² is an apocalyptic number.

879722 is a deficient number, since it is larger than the sum of its proper divisors (439864).

879722 is a wasteful number, since it uses less digits than its factorization.

879722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439863.

The product of its digits is 14112, while the sum is 35.

The square root of 879722 is about 937.9349657626. The cubic root of 879722 is about 95.8183050578.

The spelling of 879722 in words is "eight hundred seventy-nine thousand, seven hundred twenty-two".