2801623 has 8 divisors (see below), whose sum is σ = 3121920. Its totient is φ = 2492280.

The previous prime is 2801621. The next prime is 2801641. The reversal of 2801623 is 3261082.

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 2801623 - 2¹ = 2801621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2801594 and 2801603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801621) 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, 2193 + ... + 3226.

It is an arithmetic number, because the mean of its divisors is an integer number (390240).

2^2801623 is an apocalyptic number.

2801623 is a deficient number, since it is larger than the sum of its proper divisors (320297).

2801623 is a wasteful number, since it uses less digits than its factorization.

2801623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5477.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2801623 is about 1673.8049468203. The cubic root of 2801623 is about 140.9732021570.

The spelling of 2801623 in words is "two million, eight hundred one thousand, six hundred twenty-three".