8991946 has 24 divisors (see below), whose sum is σ = 14677056. Its totient is φ = 4128960.

The previous prime is 8991901. The next prime is 8991967. The reversal of 8991946 is 6491998.

It is a junction number, because it is equal to n+sod(n) for n = 8991896 and 8991905.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27001 + ... + 27331.

It is an arithmetic number, because the mean of its divisors is an integer number (611544).

Almost surely, 2^8991946 is an apocalyptic number.

8991946 is a deficient number, since it is larger than the sum of its proper divisors (5685110).

8991946 is a wasteful number, since it uses less digits than its factorization.

8991946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414 (or 397 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 8991946 is about 2998.6573662224. The cubic root of 8991946 is about 207.9463156572.

The spelling of 8991946 in words is "eight million, nine hundred ninety-one thousand, nine hundred forty-six".