39037939 has 2 divisors, whose sum is σ = 39037940. Its totient is φ = 39037938.

The previous prime is 39037919. The next prime is 39037961. The reversal of 39037939 is 93973093.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39037939 - 2⁵ = 39037907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39037895 and 39037904.

It is not a weakly prime, because it can be changed into another prime (39037919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19518969 + 19518970.

It is an arithmetic number, because the mean of its divisors is an integer number (19518970).

Almost surely, 2^39037939 is an apocalyptic number.

39037939 is a deficient number, since it is larger than the sum of its proper divisors (1).

39037939 is an equidigital number, since it uses as much as digits as its factorization.

39037939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 137781, while the sum is 43.

The square root of 39037939 is about 6248.0348110426. The cubic root of 39037939 is about 339.2310737662.

The spelling of 39037939 in words is "thirty-nine million, thirty-seven thousand, nine hundred thirty-nine".