39400093 has 2 divisors, whose sum is σ = 39400094. Its totient is φ = 39400092.

The previous prime is 39400069. The next prime is 39400111. The reversal of 39400093 is 39000493.

39400093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29833444 + 9566649 = 5462^2 + 3093^2 .

It is a cyclic number.

It is not a de Polignac number, because 39400093 - 2¹³ = 39391901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39400063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19700046 + 19700047.

It is an arithmetic number, because the mean of its divisors is an integer number (19700047).

Almost surely, 2^39400093 is an apocalyptic number.

It is an amenable number.

39400093 is a deficient number, since it is larger than the sum of its proper divisors (1).

39400093 is an equidigital number, since it uses as much as digits as its factorization.

39400093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 39400093 is about 6276.9493386517. The cubic root of 39400093 is about 340.2768592696.

The spelling of 39400093 in words is "thirty-nine million, four hundred thousand, ninety-three".