27940635 has 24 divisors (see below), whose sum is σ = 48821760. Its totient is φ = 14781312.

The previous prime is 27940609. The next prime is 27940637. The reversal of 27940635 is 53604972.

It is not a de Polignac number, because 27940635 - 2¹⁸ = 27678491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27940635.

It is not an unprimeable number, because it can be changed into a prime (27940637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3271 + ... + 8159.

It is an arithmetic number, because the mean of its divisors is an integer number (2034240).

Almost surely, 2^27940635 is an apocalyptic number.

27940635 is a deficient number, since it is larger than the sum of its proper divisors (20881125).

27940635 is a wasteful number, since it uses less digits than its factorization.

27940635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5027 (or 5024 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 27940635 is about 5285.8901804710. The cubic root of 27940635 is about 303.4441416470. Note that the first 3 decimals are identical.

The spelling of 27940635 in words is "twenty-seven million, nine hundred forty thousand, six hundred thirty-five".