8998558967 has 2 divisors, whose sum is σ = 8998558968. Its totient is φ = 8998558966.

The previous prime is 8998558951. The next prime is 8998558997. The reversal of 8998558967 is 7698558998.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8998558967 - 2⁴ = 8998558951 is a prime.

It is a super-2 number, since 2×8998558967² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8998558894 and 8998558903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8998558997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4499279483 + 4499279484.

It is an arithmetic number, because the mean of its divisors is an integer number (4499279484).

Almost surely, 2^8998558967 is an apocalyptic number.

8998558967 is a deficient number, since it is larger than the sum of its proper divisors (1).

8998558967 is an equidigital number, since it uses as much as digits as its factorization.

8998558967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 391910400, while the sum is 74.

The square root of 8998558967 is about 94860.7345902402. The cubic root of 8998558967 is about 2079.9727997398.

The spelling of 8998558967 in words is "eight billion, nine hundred ninety-eight million, five hundred fifty-eight thousand, nine hundred sixty-seven".