2989281 has 8 divisors (see below), whose sum is σ = 4036480. Its totient is φ = 1967472.

The previous prime is 2989279. The next prime is 2989309. The reversal of 2989281 is 1829892.

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

It is not a de Polignac number, because 2989281 - 2¹ = 2989279 is a prime.

It is a super-2 number, since 2×2989281² = 17871601793922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2989201) 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, 6070 + ... + 6543.

It is an arithmetic number, because the mean of its divisors is an integer number (504560).

2^2989281 is an apocalyptic number.

It is an amenable number.

2989281 is a deficient number, since it is larger than the sum of its proper divisors (1047199).

2989281 is a wasteful number, since it uses less digits than its factorization.

2989281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12695.

The product of its digits is 20736, while the sum is 39.

The square root of 2989281 is about 1728.9537298609. The cubic root of 2989281 is about 144.0529801195.

The spelling of 2989281 in words is "two million, nine hundred eighty-nine thousand, two hundred eighty-one".