27432985 has 32 divisors (see below), whose sum is σ = 37324800. Its totient is φ = 19246080.

The previous prime is 27432983. The next prime is 27433009. The reversal of 27432985 is 58923472.

It is not a de Polignac number, because 27432985 - 2¹ = 27432983 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (27432983) 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, 76236 + ... + 76594.

It is an arithmetic number, because the mean of its divisors is an integer number (1166400).

Almost surely, 2^27432985 is an apocalyptic number.

It is an amenable number.

27432985 is a deficient number, since it is larger than the sum of its proper divisors (9891815).

27432985 is a wasteful number, since it uses less digits than its factorization.

27432985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441.

The product of its digits is 120960, while the sum is 40.

The square root of 27432985 is about 5237.6507138220. The cubic root of 27432985 is about 301.5951514217.

The spelling of 27432985 in words is "twenty-seven million, four hundred thirty-two thousand, nine hundred eighty-five".