27090207 has 10 divisors (see below), whose sum is σ = 40468208. Its totient is φ = 18060084.

The previous prime is 27090191. The next prime is 27090221. The reversal of 27090207 is 70209072.

It is not a de Polignac number, because 27090207 - 2⁴ = 27090191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27090247) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 167143 + ... + 167304.

Almost surely, 2^27090207 is an apocalyptic number.

27090207 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

27090207 is a deficient number, since it is larger than the sum of its proper divisors (13378001).

27090207 is an equidigital number, since it uses as much as digits as its factorization.

27090207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334459 (or 334450 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 27090207 is about 5204.8253573007. The cubic root of 27090207 is about 300.3337286130. Note that the first 3 decimals are identical.

Adding to 27090207 its reverse (70209072), we get a palindrome (97299279).

The spelling of 27090207 in words is "twenty-seven million, ninety thousand, two hundred seven".