18396607 has 2 divisors, whose sum is σ = 18396608. Its totient is φ = 18396606.

The previous prime is 18396569. The next prime is 18396629. The reversal of 18396607 is 70669381.

It is a strong prime.

It is an emirp because it is prime and its reverse (70669381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18396607 - 2⁷ = 18396479 is a prime.

It is a super-2 number, since 2×18396607² = 676870298224898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18396607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18396667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9198303 + 9198304.

It is an arithmetic number, because the mean of its divisors is an integer number (9198304).

Almost surely, 2^18396607 is an apocalyptic number.

18396607 is a deficient number, since it is larger than the sum of its proper divisors (1).

18396607 is an equidigital number, since it uses as much as digits as its factorization.

18396607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 18396607 is about 4289.1266010693. The cubic root of 18396607 is about 263.9849958951.

The spelling of 18396607 in words is "eighteen million, three hundred ninety-six thousand, six hundred seven".