38898779 has 2 divisors, whose sum is σ = 38898780. Its totient is φ = 38898778.

The previous prime is 38898689. The next prime is 38898787. The reversal of 38898779 is 97789883.

It is a strong prime.

It is an emirp because it is prime and its reverse (97789883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38898779 - 2¹² = 38894683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38898479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19449389 + 19449390.

It is an arithmetic number, because the mean of its divisors is an integer number (19449390).

Almost surely, 2^38898779 is an apocalyptic number.

38898779 is a deficient number, since it is larger than the sum of its proper divisors (1).

38898779 is an equidigital number, since it uses as much as digits as its factorization.

38898779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 59.

The square root of 38898779 is about 6236.8885672264. Note that the first 3 decimals coincide. The cubic root of 38898779 is about 338.8275039503.

The spelling of 38898779 in words is "thirty-eight million, eight hundred ninety-eight thousand, seven hundred seventy-nine".