27425898 has 32 divisors (see below), whose sum is σ = 61427520. Its totient is φ = 9069840.

The previous prime is 27425897. The next prime is 27425927. The reversal of 27425898 is 89852472.

27425898 is a `hidden beast` number, since 27 + 42 + 589 + 8 = 666.

It is a super-2 number, since 2×27425898² = 1504359762212808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27425897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5136 + ... + 9012.

It is an arithmetic number, because the mean of its divisors is an integer number (1919610).

Almost surely, 2^27425898 is an apocalyptic number.

27425898 is an abundant number, since it is smaller than the sum of its proper divisors (34001622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27425898 is a wasteful number, since it uses less digits than its factorization.

27425898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4019 (or 4013 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 27425898 is about 5236.9741263443. The cubic root of 27425898 is about 301.5691779580.

The spelling of 27425898 in words is "twenty-seven million, four hundred twenty-five thousand, eight hundred ninety-eight".