39860923 has 2 divisors, whose sum is σ = 39860924. Its totient is φ = 39860922.

The previous prime is 39860857. The next prime is 39860959. The reversal of 39860923 is 32906893.

39860923 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 is an emirp because it is prime and its reverse (32906893) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39860923 is a prime.

It is not a weakly prime, because it can be changed into another prime (39866923) 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, 19930461 + 19930462.

It is an arithmetic number, because the mean of its divisors is an integer number (19930462).

Almost surely, 2^39860923 is an apocalyptic number.

39860923 is a deficient number, since it is larger than the sum of its proper divisors (1).

39860923 is an equidigital number, since it uses as much as digits as its factorization.

39860923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 39860923 is about 6313.5507442326. The cubic root of 39860923 is about 341.5983651956.

The spelling of 39860923 in words is "thirty-nine million, eight hundred sixty thousand, nine hundred twenty-three".