8631379 has 2 divisors, whose sum is σ = 8631380. Its totient is φ = 8631378.

The previous prime is 8631373. The next prime is 8631391. The reversal of 8631379 is 9731368.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8631379 - 2⁷ = 8631251 is a prime.

It is not a weakly prime, because it can be changed into another prime (8631373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4315689 + 4315690.

It is an arithmetic number, because the mean of its divisors is an integer number (4315690).

Almost surely, 2^8631379 is an apocalyptic number.

8631379 is a deficient number, since it is larger than the sum of its proper divisors (1).

8631379 is an equidigital number, since it uses as much as digits as its factorization.

8631379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 8631379 is about 2937.9208634679. The cubic root of 8631379 is about 205.1288422658.

The spelling of 8631379 in words is "eight million, six hundred thirty-one thousand, three hundred seventy-nine".