27695690 has 48 divisors (see below), whose sum is σ = 56077056. Its totient is φ = 9836640.

The previous prime is 27695653. The next prime is 27695713. The reversal of 27695690 is 9659672.

It is a super-2 number, since 2×27695690² = 1534102489152200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56627 + ... + 57113.

It is an arithmetic number, because the mean of its divisors is an integer number (1168272).

Almost surely, 2^27695690 is an apocalyptic number.

27695690 is an abundant number, since it is smaller than the sum of its proper divisors (28381366).

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

27695690 is a wasteful number, since it uses less digits than its factorization.

27695690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 27695690 is about 5262.6694747058. The cubic root of 27695690 is about 302.5548110046.

The spelling of 27695690 in words is "twenty-seven million, six hundred ninety-five thousand, six hundred ninety".