8981431 has 8 divisors (see below), whose sum is σ = 9492480. Its totient is φ = 8480472.

The previous prime is 8981411. The next prime is 8981437. The reversal of 8981431 is 1341898.

It is a happy number.

8981431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8981431 - 2⁷ = 8981303 is a prime.

It is a super-2 number, since 2×8981431² = 161332205615522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8981437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655 + ... + 4288.

It is an arithmetic number, because the mean of its divisors is an integer number (1186560).

Almost surely, 2^8981431 is an apocalyptic number.

8981431 is a deficient number, since it is larger than the sum of its proper divisors (511049).

8981431 is a wasteful number, since it uses less digits than its factorization.

8981431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5045.

The product of its digits is 6912, while the sum is 34.

The square root of 8981431 is about 2996.9035686855. The cubic root of 8981431 is about 207.8652279680.

The spelling of 8981431 in words is "eight million, nine hundred eighty-one thousand, four hundred thirty-one".