27926720 has 56 divisors (see below), whose sum is σ = 66988944. Its totient is φ = 11088896.

The previous prime is 27926693. The next prime is 27926729. The reversal of 27926720 is 2762972.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (27926729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62819 + ... + 63261.

Almost surely, 2^27926720 is an apocalyptic number.

27926720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27926720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33494472).

27926720 is an abundant number, since it is smaller than the sum of its proper divisors (39062224).

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

27926720 is a wasteful number, since it uses less digits than its factorization.

27926720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 27926720 is about 5284.5737765689. The cubic root of 27926720 is about 303.3937595139.

The spelling of 27926720 in words is "twenty-seven million, nine hundred twenty-six thousand, seven hundred twenty".