8769400979 has 2 divisors, whose sum is σ = 8769400980. Its totient is φ = 8769400978.

The previous prime is 8769400963. The next prime is 8769401021. The reversal of 8769400979 is 9790049678.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8769400979 - 2⁴ = 8769400963 is a prime.

It is not a weakly prime, because it can be changed into another prime (8769400909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4384700489 + 4384700490.

It is an arithmetic number, because the mean of its divisors is an integer number (4384700490).

Almost surely, 2^8769400979 is an apocalyptic number.

8769400979 is a deficient number, since it is larger than the sum of its proper divisors (1).

8769400979 is an equidigital number, since it uses as much as digits as its factorization.

8769400979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6858432, while the sum is 59.

The square root of 8769400979 is about 93645.0798440580. The cubic root of 8769400979 is about 2062.1645155662.

The spelling of 8769400979 in words is "eight billion, seven hundred sixty-nine million, four hundred thousand, nine hundred seventy-nine".