27669481 has 8 divisors (see below), whose sum is σ = 32068224. Its totient is φ = 23382240.

The previous prime is 27669469. The next prime is 27669493. The reversal of 27669481 is 18496672.

It is an interprime number because it is at equal distance from previous prime (27669469) and next prime (27669493).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27669481 - 2²¹ = 25572329 is a prime.

It is a super-2 number, since 2×27669481² = 1531200357618722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27669431) 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, 27340 + ... + 28333.

It is an arithmetic number, because the mean of its divisors is an integer number (4008528).

Almost surely, 2^27669481 is an apocalyptic number.

It is an amenable number.

27669481 is a deficient number, since it is larger than the sum of its proper divisors (4398743).

27669481 is an equidigital number, since it uses as much as digits as its factorization.

27669481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55751.

The product of its digits is 145152, while the sum is 43.

The square root of 27669481 is about 5260.1787992425. The cubic root of 27669481 is about 302.4593429410.

The spelling of 27669481 in words is "twenty-seven million, six hundred sixty-nine thousand, four hundred eighty-one".