27905064 has 32 divisors (see below), whose sum is σ = 76105440. Its totient is φ = 8456000.

The previous prime is 27905063. The next prime is 27905077. The reversal of 27905064 is 46050972.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (27905063) 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 7 ways as a sum of consecutive naturals, for example, 52587 + ... + 53114.

It is an arithmetic number, because the mean of its divisors is an integer number (2378295).

Almost surely, 2^27905064 is an apocalyptic number.

27905064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

27905064 is an abundant number, since it is smaller than the sum of its proper divisors (48200376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27905064 is a wasteful number, since it uses less digits than its factorization.

27905064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105721 (or 105717 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 27905064 is about 5282.5243965362. The cubic root of 27905064 is about 303.3153161889.

The spelling of 27905064 in words is "twenty-seven million, nine hundred five thousand, sixty-four".