27408413 has 6 divisors (see below), whose sum is σ = 27621594. Its totient is φ = 27196176.

The previous prime is 27408383. The next prime is 27408439. The reversal of 27408413 is 31480472.

It can be written as a sum of positive squares in 3 ways, for example, as 12945604 + 14462809 = 3598^2 + 3803^2 .

It is not a de Polignac number, because 27408413 - 2⁶ = 27408349 is a prime.

It is a super-2 number, since 2×27408413² = 1502442206357138, 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 (27408313) 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 5 ways as a sum of consecutive naturals, for example, 73295 + ... + 73667.

It is an arithmetic number, because the mean of its divisors is an integer number (4603599).

Almost surely, 2^27408413 is an apocalyptic number.

It is an amenable number.

27408413 is a deficient number, since it is larger than the sum of its proper divisors (213181).

27408413 is an frugal number, since it uses more digits than its factorization.

27408413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 27408413 is about 5235.3044801616. The cubic root of 27408413 is about 301.5050772549.

Adding to 27408413 its reverse (31480472), we get a palindrome (58888885).

The spelling of 27408413 in words is "twenty-seven million, four hundred eight thousand, four hundred thirteen".