27995385 has 32 divisors (see below), whose sum is σ = 49102848. Its totient is φ = 13507520.

The previous prime is 27995381. The next prime is 27995399. The reversal of 27995385 is 58359972.

It is a happy number.

It is not a de Polignac number, because 27995385 - 2² = 27995381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27995381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62974 + ... + 63416.

It is an arithmetic number, because the mean of its divisors is an integer number (1534464).

Almost surely, 2^27995385 is an apocalyptic number.

It is an amenable number.

27995385 is a deficient number, since it is larger than the sum of its proper divisors (21107463).

27995385 is a wasteful number, since it uses less digits than its factorization.

27995385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845.

The product of its digits is 680400, while the sum is 48.

The square root of 27995385 is about 5291.0665276483. The cubic root of 27995385 is about 303.6422131065.

The spelling of 27995385 in words is "twenty-seven million, nine hundred ninety-five thousand, three hundred eighty-five".