38619923 has 2 divisors, whose sum is σ = 38619924. Its totient is φ = 38619922.

The previous prime is 38619901. The next prime is 38619929. The reversal of 38619923 is 32991683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38619923 - 2⁸ = 38619667 is a prime.

It is not a weakly prime, because it can be changed into another prime (38619929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19309961 + 19309962.

It is an arithmetic number, because the mean of its divisors is an integer number (19309962).

Almost surely, 2^38619923 is an apocalyptic number.

38619923 is a deficient number, since it is larger than the sum of its proper divisors (1).

38619923 is an equidigital number, since it uses as much as digits as its factorization.

38619923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The square root of 38619923 is about 6214.4929801232. The cubic root of 38619923 is about 338.0159038068.

The spelling of 38619923 in words is "thirty-eight million, six hundred nineteen thousand, nine hundred twenty-three".