27951413 has 16 divisors (see below), whose sum is σ = 34320000. Its totient is φ = 22692096.

The previous prime is 27951409. The next prime is 27951433. The reversal of 27951413 is 31415972.

It is not a de Polignac number, because 27951413 - 2² = 27951409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27951413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27951433) 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 15 ways as a sum of consecutive naturals, for example, 4373 + ... + 8661.

It is an arithmetic number, because the mean of its divisors is an integer number (2145000).

Almost surely, 2^27951413 is an apocalyptic number.

It is an amenable number.

27951413 is a deficient number, since it is larger than the sum of its proper divisors (6368587).

27951413 is an equidigital number, since it uses as much as digits as its factorization.

27951413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4329 (or 4315 counting only the distinct ones).

The product of its digits is 7560, while the sum is 32.

The square root of 27951413 is about 5286.9095887863. The cubic root of 27951413 is about 303.4831541285.

The spelling of 27951413 in words is "twenty-seven million, nine hundred fifty-one thousand, four hundred thirteen".