879665797 has 4 divisors (see below), whose sum is σ = 917912160. Its totient is φ = 841419436.

The previous prime is 879665791. The next prime is 879665837. The reversal of 879665797 is 797566978.

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.

It is a cyclic number.

It is not a de Polignac number, because 879665797 - 2¹¹ = 879663749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879665791) 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, 19123147 + ... + 19123192.

It is an arithmetic number, because the mean of its divisors is an integer number (229478040).

Almost surely, 2^879665797 is an apocalyptic number.

It is an amenable number.

879665797 is a deficient number, since it is larger than the sum of its proper divisors (38246363).

879665797 is a wasteful number, since it uses less digits than its factorization.

879665797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38246362.

The product of its digits is 40007520, while the sum is 64.

The square root of 879665797 is about 29659.1604230464. The cubic root of 879665797 is about 958.1626449242.

The spelling of 879665797 in words is "eight hundred seventy-nine million, six hundred sixty-five thousand, seven hundred ninety-seven".