8994608691 has 32 divisors (see below), whose sum is σ = 12497172480. Its totient is φ = 5750621184.

The previous prime is 8994608687. The next prime is 8994608699. The reversal of 8994608691 is 1968064998.

It is not a de Polignac number, because 8994608691 - 2² = 8994608687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8994608699) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1414866 + ... + 1421208.

It is an arithmetic number, because the mean of its divisors is an integer number (390536640).

Almost surely, 2^8994608691 is an apocalyptic number.

8994608691 is a deficient number, since it is larger than the sum of its proper divisors (3502563789).

8994608691 is a wasteful number, since it uses less digits than its factorization.

8994608691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6595.

The product of its (nonzero) digits is 6718464, while the sum is 60.

The square root of 8994608691 is about 94839.9108550825. The cubic root of 8994608691 is about 2079.6683928798.

The spelling of 8994608691 in words is "eight billion, nine hundred ninety-four million, six hundred eight thousand, six hundred ninety-one".