27726057 has 28 divisors (see below), whose sum is σ = 42220404. Its totient is φ = 18195840.

The previous prime is 27726053. The next prime is 27726079. The reversal of 27726057 is 75062772.

It can be written as a sum of positive squares in 2 ways, for example, as 11758041 + 15968016 = 3429^2 + 3996^2 .

It is not a de Polignac number, because 27726057 - 2² = 27726053 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (27726053) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 52957 + ... + 53477.

Almost surely, 2^27726057 is an apocalyptic number.

27726057 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

27726057 is a deficient number, since it is larger than the sum of its proper divisors (14494347).

27726057 is an frugal number, since it uses more digits than its factorization.

27726057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 597 counting only the distinct ones).

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

The square root of 27726057 is about 5265.5538170263. The cubic root of 27726057 is about 302.6653495763.

The spelling of 27726057 in words is "twenty-seven million, seven hundred twenty-six thousand, fifty-seven".