27157743 has 6 divisors (see below), whose sum is σ = 39227864. Its totient is φ = 18105156.

The previous prime is 27157709. The next prime is 27157813. The reversal of 27157743 is 34775172.

It is not a de Polignac number, because 27157743 - 2¹² = 27153647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27157698 and 27157707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27157243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1508755 + ... + 1508772.

Almost surely, 2^27157743 is an apocalyptic number.

27157743 is a deficient number, since it is larger than the sum of its proper divisors (12070121).

27157743 is a wasteful number, since it uses less digits than its factorization.

27157743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3017533 (or 3017530 counting only the distinct ones).

The product of its digits is 41160, while the sum is 36.

The square root of 27157743 is about 5211.3091445432. The cubic root of 27157743 is about 300.5830992499.

The spelling of 27157743 in words is "twenty-seven million, one hundred fifty-seven thousand, seven hundred forty-three".