38679439 has 2 divisors, whose sum is σ = 38679440. Its totient is φ = 38679438.

The previous prime is 38679373. The next prime is 38679461. The reversal of 38679439 is 93497683.

It is a strong prime.

It is an emirp because it is prime and its reverse (93497683) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38679439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38679392 and 38679401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38679469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19339719 + 19339720.

It is an arithmetic number, because the mean of its divisors is an integer number (19339720).

Almost surely, 2^38679439 is an apocalyptic number.

38679439 is a deficient number, since it is larger than the sum of its proper divisors (1).

38679439 is an equidigital number, since it uses as much as digits as its factorization.

38679439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 49.

The square root of 38679439 is about 6219.2796206635. The cubic root of 38679439 is about 338.1894500642.

The spelling of 38679439 in words is "thirty-eight million, six hundred seventy-nine thousand, four hundred thirty-nine".