2801263 has 4 divisors (see below), whose sum is σ = 2830240. Its totient is φ = 2772288.

The previous prime is 2801257. The next prime is 2801273. The reversal of 2801263 is 3621082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2801263 - 2¹³ = 2793071 is a prime.

It is a Duffinian number.

2801263 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14343 + ... + 14536.

It is an arithmetic number, because the mean of its divisors is an integer number (707560).

2^2801263 is an apocalyptic number.

2801263 is a deficient number, since it is larger than the sum of its proper divisors (28977).

2801263 is an equidigital number, since it uses as much as digits as its factorization.

2801263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28976.

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

The square root of 2801263 is about 1673.6974039533. The cubic root of 2801263 is about 140.9671636897.

The spelling of 2801263 in words is "two million, eight hundred one thousand, two hundred sixty-three".