18984701 has 2 divisors, whose sum is σ = 18984702. Its totient is φ = 18984700.

The previous prime is 18984697. The next prime is 18984703. The reversal of 18984701 is 10748981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10719076 + 8265625 = 3274^2 + 2875^2 .

It is a cyclic number.

It is not a de Polignac number, because 18984701 - 2² = 18984697 is a prime.

It is a super-3 number, since 3×18984701³ (a number of 23 digits) contains 333 as substring.

Together with 18984703, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18984703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9492350 + 9492351.

It is an arithmetic number, because the mean of its divisors is an integer number (9492351).

Almost surely, 2^18984701 is an apocalyptic number.

It is an amenable number.

18984701 is a deficient number, since it is larger than the sum of its proper divisors (1).

18984701 is an equidigital number, since it uses as much as digits as its factorization.

18984701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 18984701 is about 4357.1436744730. The cubic root of 18984701 is about 266.7685248038.

The spelling of 18984701 in words is "eighteen million, nine hundred eighty-four thousand, seven hundred one".