27898461 has 12 divisors (see below), whose sum is σ = 40714492. Its totient is φ = 18406656.

The previous prime is 27898447. The next prime is 27898463. The reversal of 27898461 is 16489872.

It can be written as a sum of positive squares in 2 ways, for example, as 17690436 + 10208025 = 4206^2 + 3195^2 .

It is not a de Polignac number, because 27898461 - 2¹⁵ = 27865693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27898463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15106 + ... + 16851.

Almost surely, 2^27898461 is an apocalyptic number.

It is an amenable number.

27898461 is a deficient number, since it is larger than the sum of its proper divisors (12816031).

27898461 is a wasteful number, since it uses less digits than its factorization.

27898461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32060 (or 32057 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 27898461 is about 5281.8993742782. The cubic root of 27898461 is about 303.2913904357.

The spelling of 27898461 in words is "twenty-seven million, eight hundred ninety-eight thousand, four hundred sixty-one".