38879779 has 2 divisors, whose sum is σ = 38879780. Its totient is φ = 38879778.

The previous prime is 38879747. The next prime is 38879801. The reversal of 38879779 is 97797883.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38879779 - 2⁵ = 38879747 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38876779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19439889 + 19439890.

It is an arithmetic number, because the mean of its divisors is an integer number (19439890).

Almost surely, 2^38879779 is an apocalyptic number.

38879779 is a deficient number, since it is larger than the sum of its proper divisors (1).

38879779 is an equidigital number, since it uses as much as digits as its factorization.

38879779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5334336, while the sum is 58.

The square root of 38879779 is about 6235.3651857770. The cubic root of 38879779 is about 338.7723285164.

The spelling of 38879779 in words is "thirty-eight million, eight hundred seventy-nine thousand, seven hundred seventy-nine".