8634231377 has 2 divisors, whose sum is σ = 8634231378. Its totient is φ = 8634231376.

The previous prime is 8634231253. The next prime is 8634231401. The reversal of 8634231377 is 7731324368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7415104321 + 1219127056 = 86111^2 + 34916^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8634231377 is a prime.

It is a super-2 number, since 2×8634231377² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8634230377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4317115688 + 4317115689.

It is an arithmetic number, because the mean of its divisors is an integer number (4317115689).

Almost surely, 2^8634231377 is an apocalyptic number.

It is an amenable number.

8634231377 is a deficient number, since it is larger than the sum of its proper divisors (1).

8634231377 is an equidigital number, since it uses as much as digits as its factorization.

8634231377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 44.

The square root of 8634231377 is about 92920.5648766730. The cubic root of 8634231377 is about 2051.5143581084.

The spelling of 8634231377 in words is "eight billion, six hundred thirty-four million, two hundred thirty-one thousand, three hundred seventy-seven".