2628989 has 8 divisors (see below), whose sum is σ = 2884800. Its totient is φ = 2376000.

The previous prime is 2628979. The next prime is 2629001. The reversal of 2628989 is 9898262.

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

It is not a de Polignac number, because 2628989 - 2¹⁶ = 2563453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2628919) 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, 1589 + ... + 2789.

It is an arithmetic number, because the mean of its divisors is an integer number (360600).

2^2628989 is an apocalyptic number.

It is an amenable number.

2628989 is a deficient number, since it is larger than the sum of its proper divisors (255811).

2628989 is a wasteful number, since it uses less digits than its factorization.

2628989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411.

The product of its digits is 124416, while the sum is 44.

The square root of 2628989 is about 1621.4157394080. The cubic root of 2628989 is about 138.0160486832.

The spelling of 2628989 in words is "two million, six hundred twenty-eight thousand, nine hundred eighty-nine".