27696290 has 16 divisors (see below), whose sum is σ = 50016312. Its totient is φ = 11042304.

The previous prime is 27696289. The next prime is 27696293. The reversal of 27696290 is 9269672.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13490929 + 14205361 = 3673^2 + 3769^2 .

It is not an unprimeable number, because it can be changed into a prime (27696293) 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, 1199 + ... + 7538.

Almost surely, 2^27696290 is an apocalyptic number.

27696290 is a deficient number, since it is larger than the sum of its proper divisors (22320022).

27696290 is a wasteful number, since it uses less digits than its factorization.

27696290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9061.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 27696290 is about 5262.7264796871. The cubic root of 27696290 is about 302.5569958401.

The spelling of 27696290 in words is "twenty-seven million, six hundred ninety-six thousand, two hundred ninety".