39389093 has 2 divisors, whose sum is σ = 39389094. Its totient is φ = 39389092.

The previous prime is 39389057. The next prime is 39389101. The reversal of 39389093 is 39098393.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21224449 + 18164644 = 4607^2 + 4262^2 .

It is a cyclic number.

It is not a de Polignac number, because 39389093 - 2⁶ = 39389029 is a prime.

It is a super-3 number, since 3×39389093³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39389023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19694546 + 19694547.

It is an arithmetic number, because the mean of its divisors is an integer number (19694547).

Almost surely, 2^39389093 is an apocalyptic number.

It is an amenable number.

39389093 is a deficient number, since it is larger than the sum of its proper divisors (1).

39389093 is an equidigital number, since it uses as much as digits as its factorization.

39389093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 44.

The square root of 39389093 is about 6276.0730556615. The cubic root of 39389093 is about 340.2451893457.

It can be divided in two parts, 3938 and 9093, that added together give a palindrome (13031).

The spelling of 39389093 in words is "thirty-nine million, three hundred eighty-nine thousand, ninety-three".