27233813 has 16 divisors (see below), whose sum is σ = 30656880. Its totient is φ = 24062976.

The previous prime is 27233807. The next prime is 27233827. The reversal of 27233813 is 31833272.

It can be written as a sum of positive squares in 8 ways, for example, as 8631844 + 18601969 = 2938^2 + 4313^2 .

It is a cyclic number.

It is not a de Polignac number, because 27233813 - 2¹⁰ = 27232789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27236813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17495 + ... + 18987.

It is an arithmetic number, because the mean of its divisors is an integer number (1916055).

Almost surely, 2^27233813 is an apocalyptic number.

It is an amenable number.

27233813 is a deficient number, since it is larger than the sum of its proper divisors (3423067).

27233813 is a wasteful number, since it uses less digits than its factorization.

27233813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576.

The product of its digits is 6048, while the sum is 29.

The square root of 27233813 is about 5218.6025907325. The cubic root of 27233813 is about 300.8634863274.

The spelling of 27233813 in words is "twenty-seven million, two hundred thirty-three thousand, eight hundred thirteen".