27800541 has 6 divisors (see below), whose sum is σ = 40156350. Its totient is φ = 18533688.

The previous prime is 27800527. The next prime is 27800543. The reversal of 27800541 is 14500872.

It can be written as a sum of positive squares in only one way, i.e., 17264025 + 10536516 = 4155^2 + 3246^2 .

It is not a de Polignac number, because 27800541 - 2¹⁴ = 27784157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27800543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1544466 + ... + 1544483.

It is an arithmetic number, because the mean of its divisors is an integer number (6692725).

Almost surely, 2^27800541 is an apocalyptic number.

It is an amenable number.

27800541 is a deficient number, since it is larger than the sum of its proper divisors (12355809).

27800541 is a wasteful number, since it uses less digits than its factorization.

27800541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088955 (or 3088952 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 27800541 is about 5272.6218335853. The cubic root of 27800541 is about 302.9361365911.

The spelling of 27800541 in words is "twenty-seven million, eight hundred thousand, five hundred forty-one".