38219879 has 2 divisors, whose sum is σ = 38219880. Its totient is φ = 38219878.

The previous prime is 38219873. The next prime is 38219891. The reversal of 38219879 is 97891283.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38219879 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38219873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19109939 + 19109940.

It is an arithmetic number, because the mean of its divisors is an integer number (19109940).

Almost surely, 2^38219879 is an apocalyptic number.

38219879 is a deficient number, since it is larger than the sum of its proper divisors (1).

38219879 is an equidigital number, since it uses as much as digits as its factorization.

38219879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 47.

The square root of 38219879 is about 6182.2228203131. Note that the first 3 decimals coincide. The cubic root of 38219879 is about 336.8447394175.

The spelling of 38219879 in words is "thirty-eight million, two hundred nineteen thousand, eight hundred seventy-nine".