27675690 has 96 divisors (see below), whose sum is σ = 78698304. Its totient is φ = 6209280.

The previous prime is 27675689. The next prime is 27675691. The reversal of 27675690 is 9657672.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (27675689) and next prime (27675691).

It is a super-2 number, since 2×27675690² = 1531887633952200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (27675691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98350 + ... + 98630.

It is an arithmetic number, because the mean of its divisors is an integer number (819774).

Almost surely, 2^27675690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27675690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39349152).

27675690 is an abundant number, since it is smaller than the sum of its proper divisors (51022614).

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

27675690 is a wasteful number, since it uses less digits than its factorization.

27675690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 27675690 is about 5260.7689552004. The cubic root of 27675690 is about 302.4819650929.

The spelling of 27675690 in words is "twenty-seven million, six hundred seventy-five thousand, six hundred ninety".