39406039 has 2 divisors, whose sum is σ = 39406040. Its totient is φ = 39406038.

The previous prime is 39406033. The next prime is 39406111. The reversal of 39406039 is 93060493.

It is a weak prime.

It is an emirp because it is prime and its reverse (93060493) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39406039 - 2¹⁷ = 39274967 is a prime.

It is a super-3 number, since 3×39406039³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39405995 and 39406013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39406033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19703019 + 19703020.

It is an arithmetic number, because the mean of its divisors is an integer number (19703020).

Almost surely, 2^39406039 is an apocalyptic number.

39406039 is a deficient number, since it is larger than the sum of its proper divisors (1).

39406039 is an equidigital number, since it uses as much as digits as its factorization.

39406039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 39406039 is about 6277.4229585077. The cubic root of 39406039 is about 340.2939758488.

The spelling of 39406039 in words is "thirty-nine million, four hundred six thousand, thirty-nine".