8989540 has 36 divisors (see below), whose sum is σ = 21962556. Its totient is φ = 3081792.

The previous prime is 8989517. The next prime is 8989553. The reversal of 8989540 is 459898.

8989540 = T₁₃₉ + T₁₄₀ + ... + T₃₈₃.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1382976 + 7606564 = 1176^2 + 2758^2 .

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

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, 3607 + ... + 5566.

It is an arithmetic number, because the mean of its divisors is an integer number (610071).

Almost surely, 2^8989540 is an apocalyptic number.

It is an amenable number.

8989540 is an abundant number, since it is smaller than the sum of its proper divisors (12973016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8989540 is a wasteful number, since it uses less digits than its factorization.

8989540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9196 (or 9187 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 8989540 is about 2998.2561598369. The cubic root of 8989540 is about 207.9277670781.

The spelling of 8989540 in words is "eight million, nine hundred eighty-nine thousand, five hundred forty".