27381403 has 8 divisors (see below), whose sum is σ = 31603680. Its totient is φ = 23236800.

The previous prime is 27381397. The next prime is 27381427. The reversal of 27381403 is 30418372.

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

It is a cyclic number.

It is not a de Polignac number, because 27381403 - 2¹³ = 27373211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27381433) 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, 18658 + ... + 20071.

It is an arithmetic number, because the mean of its divisors is an integer number (3950460).

Almost surely, 2^27381403 is an apocalyptic number.

27381403 is a deficient number, since it is larger than the sum of its proper divisors (4222277).

27381403 is a wasteful number, since it uses less digits than its factorization.

27381403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38837.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 27381403 is about 5232.7242426866. The cubic root of 27381403 is about 301.4060039194.

Adding to 27381403 its reverse (30418372), we get a palindrome (57799775).

The spelling of 27381403 in words is "twenty-seven million, three hundred eighty-one thousand, four hundred three".