27400925 has 12 divisors (see below), whose sum is σ = 34060320. Its totient is φ = 21867120.

The previous prime is 27400921. The next prime is 27400939. The reversal of 27400925 is 52900472.

It is not a de Polignac number, because 27400925 - 2² = 27400921 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27400921) 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 11 ways as a sum of consecutive naturals, for example, 11486 + ... + 13664.

It is an arithmetic number, because the mean of its divisors is an integer number (2838360).

Almost surely, 2^27400925 is an apocalyptic number.

27400925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27400925 is a deficient number, since it is larger than the sum of its proper divisors (6659395).

27400925 is a wasteful number, since it uses less digits than its factorization.

27400925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2692 (or 2687 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 27400925 is about 5234.5892866585. The cubic root of 27400925 is about 301.4776176126.

The spelling of 27400925 in words is "twenty-seven million, four hundred thousand, nine hundred twenty-five".