8738228377 has 2 divisors, whose sum is σ = 8738228378. Its totient is φ = 8738228376.

The previous prime is 8738228363. The next prime is 8738228381. The reversal of 8738228377 is 7738228378.

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., 8618522896 + 119705481 = 92836^2 + 10941^2 .

It is a cyclic number.

It is not a de Polignac number, because 8738228377 - 2⁷ = 8738228249 is a prime.

It is not a weakly prime, because it can be changed into another prime (8738228077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4369114188 + 4369114189.

It is an arithmetic number, because the mean of its divisors is an integer number (4369114189).

Almost surely, 2^8738228377 is an apocalyptic number.

It is an amenable number.

8738228377 is a deficient number, since it is larger than the sum of its proper divisors (1).

8738228377 is an equidigital number, since it uses as much as digits as its factorization.

8738228377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6322176, while the sum is 55.

The square root of 8738228377 is about 93478.4915207771. The cubic root of 8738228377 is about 2059.7181548767.

Subtracting from 8738228377 its reverse (7738228378), we obtain a palindrome (999999999).

The spelling of 8738228377 in words is "eight billion, seven hundred thirty-eight million, two hundred twenty-eight thousand, three hundred seventy-seven".