39952379 has 2 divisors, whose sum is σ = 39952380. Its totient is φ = 39952378.

The previous prime is 39952373. The next prime is 39952387. The reversal of 39952379 is 97325993.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39952379 is a prime.

It is not a weakly prime, because it can be changed into another prime (39952373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19976189 + 19976190.

It is an arithmetic number, because the mean of its divisors is an integer number (19976190).

Almost surely, 2^39952379 is an apocalyptic number.

39952379 is a deficient number, since it is larger than the sum of its proper divisors (1).

39952379 is an equidigital number, since it uses as much as digits as its factorization.

39952379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 459270, while the sum is 47.

The square root of 39952379 is about 6320.7894285445. The cubic root of 39952379 is about 341.8594175002.

The spelling of 39952379 in words is "thirty-nine million, nine hundred fifty-two thousand, three hundred seventy-nine".