27161464 has 32 divisors (see below), whose sum is σ = 56275200. Its totient is φ = 12186720.

The previous prime is 27161443. The next prime is 27161473. The reversal of 27161464 is 46416172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4999 + ... + 8905.

It is an arithmetic number, because the mean of its divisors is an integer number (1758600).

Almost surely, 2^27161464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27161464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28137600).

27161464 is an abundant number, since it is smaller than the sum of its proper divisors (29113736).

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

27161464 is a wasteful number, since it uses less digits than its factorization.

27161464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003 (or 3999 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 27161464 is about 5211.6661443343. Note that the first 3 decimals coincide. The cubic root of 27161464 is about 300.5968266871.

The spelling of 27161464 in words is "twenty-seven million, one hundred sixty-one thousand, four hundred sixty-four".