8969154427 has 2 divisors, whose sum is σ = 8969154428. Its totient is φ = 8969154426.

The previous prime is 8969154413. The next prime is 8969154443. The reversal of 8969154427 is 7244519698.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8969154427 is a prime.

It is a super-2 number, since 2×8969154427² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8969151427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4484577213 + 4484577214.

It is an arithmetic number, because the mean of its divisors is an integer number (4484577214).

Almost surely, 2^8969154427 is an apocalyptic number.

8969154427 is a deficient number, since it is larger than the sum of its proper divisors (1).

8969154427 is an equidigital number, since it uses as much as digits as its factorization.

8969154427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 55.

The square root of 8969154427 is about 94705.6198279701. The cubic root of 8969154427 is about 2077.7047557523.

The spelling of 8969154427 in words is "eight billion, nine hundred sixty-nine million, one hundred fifty-four thousand, four hundred twenty-seven".