39339889 has 2 divisors, whose sum is σ = 39339890. Its totient is φ = 39339888.

The previous prime is 39339877. The next prime is 39339929. The reversal of 39339889 is 98893393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34574400 + 4765489 = 5880^2 + 2183^2 .

It is a cyclic number.

It is not a de Polignac number, because 39339889 - 2¹³ = 39331697 is a prime.

It is not a weakly prime, because it can be changed into another prime (39339809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19669944 + 19669945.

It is an arithmetic number, because the mean of its divisors is an integer number (19669945).

Almost surely, 2^39339889 is an apocalyptic number.

It is an amenable number.

39339889 is a deficient number, since it is larger than the sum of its proper divisors (1).

39339889 is an equidigital number, since it uses as much as digits as its factorization.

39339889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1259712, while the sum is 52.

The square root of 39339889 is about 6272.1518635951. The cubic root of 39339889 is about 340.1034546769.

The spelling of 39339889 in words is "thirty-nine million, three hundred thirty-nine thousand, eight hundred eighty-nine".