27201090 has 32 divisors (see below), whose sum is σ = 74609280. Its totient is φ = 6217344.

The previous prime is 27201089. The next prime is 27201091. The reversal of 27201090 is 9010272.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (27201089) and next prime (27201091).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (27201091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64555 + ... + 64974.

It is an arithmetic number, because the mean of its divisors is an integer number (2331540).

Almost surely, 2^27201090 is an apocalyptic number.

27201090 is an abundant number, since it is smaller than the sum of its proper divisors (47408190).

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

27201090 is a wasteful number, since it uses less digits than its factorization.

27201090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129546.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 27201090 is about 5215.4664220950. The cubic root of 27201090 is about 300.7429364106.

The spelling of 27201090 in words is "twenty-seven million, two hundred one thousand, ninety".