27400475 has 12 divisors (see below), whose sum is σ = 35454576. Its totient is φ = 20966880.

The previous prime is 27400469. The next prime is 27400507. The reversal of 27400475 is 57400472.

It is not a de Polignac number, because 27400475 - 2²⁴ = 10623259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23252 + ... + 24401.

It is an arithmetic number, because the mean of its divisors is an integer number (2954548).

Almost surely, 2^27400475 is an apocalyptic number.

27400475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27400475 is a deficient number, since it is larger than the sum of its proper divisors (8054101).

27400475 is a wasteful number, since it uses less digits than its factorization.

27400475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47686 (or 47681 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 27400475 is about 5234.5463031671. The cubic root of 27400475 is about 301.4759672344.

The spelling of 27400475 in words is "twenty-seven million, four hundred thousand, four hundred seventy-five".