38378773 has 2 divisors, whose sum is σ = 38378774. Its totient is φ = 38378772.

The previous prime is 38378759. The next prime is 38378779. The reversal of 38378773 is 37787383.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26142769 + 12236004 = 5113^2 + 3498^2 .

It is an emirp because it is prime and its reverse (37787383) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38378773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38378779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19189386 + 19189387.

It is an arithmetic number, because the mean of its divisors is an integer number (19189387).

Almost surely, 2^38378773 is an apocalyptic number.

It is an amenable number.

38378773 is a deficient number, since it is larger than the sum of its proper divisors (1).

38378773 is an equidigital number, since it uses as much as digits as its factorization.

38378773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592704, while the sum is 46.

The square root of 38378773 is about 6195.0603709730. The cubic root of 38378773 is about 337.3108895751.

The spelling of 38378773 in words is "thirty-eight million, three hundred seventy-eight thousand, seven hundred seventy-three".