27400157 has 4 divisors (see below), whose sum is σ = 28345020. Its totient is φ = 26455296.

The previous prime is 27400151. The next prime is 27400169. The reversal of 27400157 is 75100472.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23483716 + 3916441 = 4846^2 + 1979^2 .

It is a cyclic number.

It is not a de Polignac number, because 27400157 - 2¹⁴ = 27383773 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 (27400151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472388 + ... + 472445.

It is an arithmetic number, because the mean of its divisors is an integer number (7086255).

Almost surely, 2^27400157 is an apocalyptic number.

It is an amenable number.

27400157 is a deficient number, since it is larger than the sum of its proper divisors (944863).

27400157 is an equidigital number, since it uses as much as digits as its factorization.

27400157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944862.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 27400157 is about 5234.5159279536. The cubic root of 27400157 is about 301.4748009562.

The spelling of 27400157 in words is "twenty-seven million, four hundred thousand, one hundred fifty-seven".