87850445 has 4 divisors (see below), whose sum is σ = 105420540. Its totient is φ = 70280352.

The previous prime is 87850429. The next prime is 87850453. The reversal of 87850445 is 54405878.

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

It can be written as a sum of positive squares in 2 ways, for example, as 35736484 + 52113961 = 5978^2 + 7219^2 .

It is a cyclic number.

It is not a de Polignac number, because 87850445 - 2⁴ = 87850429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8785040 + ... + 8785049.

It is an arithmetic number, because the mean of its divisors is an integer number (26355135).

Almost surely, 2^87850445 is an apocalyptic number.

It is an amenable number.

87850445 is a deficient number, since it is larger than the sum of its proper divisors (17570095).

87850445 is a wasteful number, since it uses less digits than its factorization.

87850445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17570094.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 87850445 is about 9372.8568216953. The cubic root of 87850445 is about 444.5438999765.

The spelling of 87850445 in words is "eighty-seven million, eight hundred fifty thousand, four hundred forty-five".