879696749 has 2 divisors, whose sum is σ = 879696750. Its totient is φ = 879696748.

The previous prime is 879696731. The next prime is 879696757. The reversal of 879696749 is 947696978.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 726679849 + 153016900 = 26957^2 + 12370^2 .

It is a cyclic number.

It is not a de Polignac number, because 879696749 - 2¹⁶ = 879631213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (879696449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439848374 + 439848375.

It is an arithmetic number, because the mean of its divisors is an integer number (439848375).

Almost surely, 2^879696749 is an apocalyptic number.

It is an amenable number.

879696749 is a deficient number, since it is larger than the sum of its proper divisors (1).

879696749 is an equidigital number, since it uses as much as digits as its factorization.

879696749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41150592, while the sum is 65.

The square root of 879696749 is about 29659.6822134021. The cubic root of 879696749 is about 958.1738827915.

The spelling of 879696749 in words is "eight hundred seventy-nine million, six hundred ninety-six thousand, seven hundred forty-nine".