18079361 has 2 divisors, whose sum is σ = 18079362. Its totient is φ = 18079360.

The previous prime is 18079351. The next prime is 18079367. The reversal of 18079361 is 16397081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17977600 + 101761 = 4240^2 + 319^2 .

It is a cyclic number.

It is not a de Polignac number, because 18079361 - 2⁶ = 18079297 is a prime.

It is not a weakly prime, because it can be changed into another prime (18079367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9039680 + 9039681.

It is an arithmetic number, because the mean of its divisors is an integer number (9039681).

Almost surely, 2^18079361 is an apocalyptic number.

It is an amenable number.

18079361 is a deficient number, since it is larger than the sum of its proper divisors (1).

18079361 is an equidigital number, since it uses as much as digits as its factorization.

18079361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 18079361 is about 4251.9831843506. The cubic root of 18079361 is about 262.4587315320.

The spelling of 18079361 in words is "eighteen million, seventy-nine thousand, three hundred sixty-one".