2985989 has 8 divisors (see below), whose sum is σ = 3107328. Its totient is φ = 2867040.

The previous prime is 2985979. The next prime is 2985991. The reversal of 2985989 is 9895892.

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 2985989 - 2⁴ = 2985973 is a prime.

It is a super-2 number, since 2×2985989² = 17832260616242, 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 (2985949) 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, 2204 + ... + 3290.

It is an arithmetic number, because the mean of its divisors is an integer number (388416).

2^2985989 is an apocalyptic number.

It is an amenable number.

2985989 is a deficient number, since it is larger than the sum of its proper divisors (121339).

2985989 is a wasteful number, since it uses less digits than its factorization.

2985989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195.

The product of its digits is 466560, while the sum is 50.

The square root of 2985989 is about 1728.0014467587. The cubic root of 2985989 is about 144.0000803755. Note that the first 4 decimals are identical.

Subtracting 2985989 from its reverse (9895892), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2985989 in words is "two million, nine hundred eighty-five thousand, nine hundred eighty-nine".