27940413 has 4 divisors (see below), whose sum is σ = 37253888. Its totient is φ = 18626940.

The previous prime is 27940399. The next prime is 27940421. The reversal of 27940413 is 31404972.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 27940413 - 2¹⁰ = 27939389 is a prime.

It is a super-2 number, since 2×27940413² = 1561333357221138, 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 (27540413) 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, 4656733 + ... + 4656738.

It is an arithmetic number, because the mean of its divisors is an integer number (9313472).

Almost surely, 2^27940413 is an apocalyptic number.

It is an amenable number.

27940413 is a deficient number, since it is larger than the sum of its proper divisors (9313475).

27940413 is an equidigital number, since it uses as much as digits as its factorization.

27940413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9313474.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 27940413 is about 5285.8691811281. The cubic root of 27940413 is about 303.4433379814.

The spelling of 27940413 in words is "twenty-seven million, nine hundred forty thousand, four hundred thirteen".