879779773 has 2 divisors, whose sum is σ = 879779774. Its totient is φ = 879779772.

The previous prime is 879779737. The next prime is 879779827. The reversal of 879779773 is 377977978.

Together with previous prime (879779737) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 820135044 + 59644729 = 28638^2 + 7723^2 .

It is a cyclic number.

It is not a de Polignac number, because 879779773 - 2⁹ = 879779261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (879779713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439889886 + 439889887.

It is an arithmetic number, because the mean of its divisors is an integer number (439889887).

Almost surely, 2^879779773 is an apocalyptic number.

It is an amenable number.

879779773 is a deficient number, since it is larger than the sum of its proper divisors (1).

879779773 is an equidigital number, since it uses as much as digits as its factorization.

879779773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32672808, while the sum is 64.

The square root of 879779773 is about 29661.0817907911. The cubic root of 879779773 is about 958.2040253476.

The spelling of 879779773 in words is "eight hundred seventy-nine million, seven hundred seventy-nine thousand, seven hundred seventy-three".