8981390 has 16 divisors (see below), whose sum is σ = 17636400. Its totient is φ = 3265920.

The previous prime is 8981383. The next prime is 8981411. The reversal of 8981390 is 931898.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40715 + ... + 40934.

It is an arithmetic number, because the mean of its divisors is an integer number (1102275).

Almost surely, 2^8981390 is an apocalyptic number.

8981390 is a deficient number, since it is larger than the sum of its proper divisors (8655010).

8981390 is a wasteful number, since it uses less digits than its factorization.

8981390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81667.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 8981390 is about 2996.8967282841. The cubic root of 8981390 is about 207.8649116677.

The spelling of 8981390 in words is "eight million, nine hundred eighty-one thousand, three hundred ninety".