2623021 has 8 divisors (see below), whose sum is σ = 2736000. Its totient is φ = 2511600.

The previous prime is 2622959. The next prime is 2623039. The reversal of 2623021 is 1203262.

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 2623021 - 2¹⁷ = 2491949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2622986 and 2623004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2623051) 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, 4080 + ... + 4678.

It is an arithmetic number, because the mean of its divisors is an integer number (342000).

2^2623021 is an apocalyptic number.

It is an amenable number.

2623021 is a deficient number, since it is larger than the sum of its proper divisors (112979).

2623021 is a wasteful number, since it uses less digits than its factorization.

2623021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2623021 is about 1619.5743267908. The cubic root of 2623021 is about 137.9115340025.

Adding to 2623021 its reverse (1203262), we get a palindrome (3826283).

The spelling of 2623021 in words is "two million, six hundred twenty-three thousand, twenty-one".