27434669 has 4 divisors (see below), whose sum is σ = 27447420. Its totient is φ = 27421920.

The previous prime is 27434663. The next prime is 27434677. The reversal of 27434669 is 96643472.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20475625 + 6959044 = 4525^2 + 2638^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27434669 is a prime.

It is a super-2 number, since 2×27434669² = 1505322126279122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27434663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2264 + ... + 7745.

It is an arithmetic number, because the mean of its divisors is an integer number (6861855).

Almost surely, 2^27434669 is an apocalyptic number.

It is an amenable number.

27434669 is a deficient number, since it is larger than the sum of its proper divisors (12751).

27434669 is a wasteful number, since it uses less digits than its factorization.

27434669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12750.

The product of its digits is 217728, while the sum is 41.

The square root of 27434669 is about 5237.8114704521. The cubic root of 27434669 is about 301.6013225310.

It can be divided in two parts, 274 and 34669, that added together give a palindrome (34943).

The spelling of 27434669 in words is "twenty-seven million, four hundred thirty-four thousand, six hundred sixty-nine".