27957357 has 12 divisors (see below), whose sum is σ = 40432704. Its totient is φ = 18615240.

The previous prime is 27957331. The next prime is 27957373. The reversal of 27957357 is 75375972.

It is a happy number.

27957357 is a `hidden beast` number, since 2 + 79 + 573 + 5 + 7 = 666.

It is not a de Polignac number, because 27957357 - 2⁷ = 27957229 is a prime.

It is a super-2 number, since 2×27957357² = 1563227620850898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27955357) 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, 9132 + ... + 11802.

It is an arithmetic number, because the mean of its divisors is an integer number (3369392).

Almost surely, 2^27957357 is an apocalyptic number.

It is an amenable number.

27957357 is a deficient number, since it is larger than the sum of its proper divisors (12475347).

27957357 is a wasteful number, since it uses less digits than its factorization.

27957357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3840 (or 3837 counting only the distinct ones).

The product of its digits is 463050, while the sum is 45.

The square root of 27957357 is about 5287.4717020519. The cubic root of 27957357 is about 303.5046649792.

The spelling of 27957357 in words is "twenty-seven million, nine hundred fifty-seven thousand, three hundred fifty-seven".