87445227 has 4 divisors (see below), whose sum is σ = 116593640. Its totient is φ = 58296816.

The previous prime is 87445223. The next prime is 87445243. The reversal of 87445227 is 72254478.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 87445227 - 2² = 87445223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87445223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14574202 + ... + 14574207.

It is an arithmetic number, because the mean of its divisors is an integer number (29148410).

Almost surely, 2^87445227 is an apocalyptic number.

87445227 is a deficient number, since it is larger than the sum of its proper divisors (29148413).

87445227 is a wasteful number, since it uses less digits than its factorization.

87445227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29148412.

The product of its digits is 125440, while the sum is 39.

The square root of 87445227 is about 9351.2152686162. The cubic root of 87445227 is about 443.8593469338.

The spelling of 87445227 in words is "eighty-seven million, four hundred forty-five thousand, two hundred twenty-seven".