3688420117 has 2 divisors, whose sum is σ = 3688420118. Its totient is φ = 3688420116.

The previous prime is 3688420061. The next prime is 3688420123. The reversal of 3688420117 is 7110248863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2493404356 + 1195015761 = 49934^2 + 34569^2 .

It is a cyclic number.

It is not a de Polignac number, because 3688420117 - 2¹⁵ = 3688387349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3688420117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3688420157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1844210058 + 1844210059.

It is an arithmetic number, because the mean of its divisors is an integer number (1844210059).

Almost surely, 2^3688420117 is an apocalyptic number.

It is an amenable number.

3688420117 is a deficient number, since it is larger than the sum of its proper divisors (1).

3688420117 is an equidigital number, since it uses as much as digits as its factorization.

3688420117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 3688420117 is about 60732.3646583928. The cubic root of 3688420117 is about 1545.0651399870.

The spelling of 3688420117 in words is "three billion, six hundred eighty-eight million, four hundred twenty thousand, one hundred seventeen".