8077979417 has 2 divisors, whose sum is σ = 8077979418. Its totient is φ = 8077979416.

The previous prime is 8077979407. The next prime is 8077979491. The reversal of 8077979417 is 7149797708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6234049936 + 1843929481 = 78956^2 + 42941^2 .

It is a cyclic number.

It is not a de Polignac number, because 8077979417 - 2¹⁸ = 8077717273 is a prime.

It is a super-2 number, since 2×8077979417² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8077979407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4038989708 + 4038989709.

It is an arithmetic number, because the mean of its divisors is an integer number (4038989709).

Almost surely, 2^8077979417 is an apocalyptic number.

It is an amenable number.

8077979417 is a deficient number, since it is larger than the sum of its proper divisors (1).

8077979417 is an equidigital number, since it uses as much as digits as its factorization.

8077979417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6223392, while the sum is 59.

The square root of 8077979417 is about 89877.5801688052. The cubic root of 8077979417 is about 2006.4772844965.

The spelling of 8077979417 in words is "eight billion, seventy-seven million, nine hundred seventy-nine thousand, four hundred seventeen".