18698941 has 2 divisors, whose sum is σ = 18698942. Its totient is φ = 18698940.

The previous prime is 18698923. The next prime is 18698951. The reversal of 18698941 is 14989681.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13293316 + 5405625 = 3646^2 + 2325^2 .

It is a cyclic number.

It is not a de Polignac number, because 18698941 - 2⁵ = 18698909 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18698891 and 18698900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18698951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9349470 + 9349471.

It is an arithmetic number, because the mean of its divisors is an integer number (9349471).

Almost surely, 2^18698941 is an apocalyptic number.

It is an amenable number.

18698941 is a deficient number, since it is larger than the sum of its proper divisors (1).

18698941 is an equidigital number, since it uses as much as digits as its factorization.

18698941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 46.

The square root of 18698941 is about 4324.2272141968. The cubic root of 18698941 is about 265.4232751418.

The spelling of 18698941 in words is "eighteen million, six hundred ninety-eight thousand, nine hundred forty-one".