27072890 has 16 divisors (see below), whose sum is σ = 52480008. Its totient is φ = 9996096.

The previous prime is 27072887. The next prime is 27072901. The reversal of 27072890 is 9827072.

It can be written as a sum of positive squares in 4 ways, for example, as 9541921 + 17530969 = 3089^2 + 4187^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27072890.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103997 + ... + 104256.

Almost surely, 2^27072890 is an apocalyptic number.

27072890 is a deficient number, since it is larger than the sum of its proper divisors (25407118).

27072890 is a wasteful number, since it uses less digits than its factorization.

27072890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208273.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 27072890 is about 5203.1615389107. The cubic root of 27072890 is about 300.2697203933.

The spelling of 27072890 in words is "twenty-seven million, seventy-two thousand, eight hundred ninety".