27129792 has 28 divisors (see below), whose sum is σ = 71781416. Its totient is φ = 9043200.

The previous prime is 27129779. The next prime is 27129827. The reversal of 27129792 is 29792172.

It is a super-2 number, since 2×27129792² = 1472051227926528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27129792.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70459 + ... + 70842.

It is an arithmetic number, because the mean of its divisors is an integer number (2563622).

Almost surely, 2^27129792 is an apocalyptic number.

It is an amenable number.

27129792 is an abundant number, since it is smaller than the sum of its proper divisors (44651624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27129792 is a wasteful number, since it uses less digits than its factorization.

27129792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141316 (or 141306 counting only the distinct ones).

The product of its digits is 31752, while the sum is 39.

The square root of 27129792 is about 5208.6266904051. The cubic root of 27129792 is about 300.4799428844.

It can be divided in two parts, 27 and 129792, that multiplied together give a square (3504384 = 1872²).

The spelling of 27129792 in words is "twenty-seven million, one hundred twenty-nine thousand, seven hundred ninety-two".