39620117 has 2 divisors, whose sum is σ = 39620118. Its totient is φ = 39620116.

The previous prime is 39620089. The next prime is 39620123. The reversal of 39620117 is 71102693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36554116 + 3066001 = 6046^2 + 1751^2 .

It is a cyclic number.

It is not a de Polignac number, because 39620117 - 2¹⁰ = 39619093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39620117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39620137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19810058 + 19810059.

It is an arithmetic number, because the mean of its divisors is an integer number (19810059).

Almost surely, 2^39620117 is an apocalyptic number.

It is an amenable number.

39620117 is a deficient number, since it is larger than the sum of its proper divisors (1).

39620117 is an equidigital number, since it uses as much as digits as its factorization.

39620117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 39620117 is about 6294.4512866492. The cubic root of 39620117 is about 340.9090924757.

The spelling of 39620117 in words is "thirty-nine million, six hundred twenty thousand, one hundred seventeen".