87445603 has 8 divisors (see below), whose sum is σ = 105816672. Its totient is φ = 70544256.

The previous prime is 87445591. The next prime is 87445613. The reversal of 87445603 is 30654478.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87445603 - 2⁵ = 87445571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87445613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367300 + ... + 367537.

It is an arithmetic number, because the mean of its divisors is an integer number (13227084).

Almost surely, 2^87445603 is an apocalyptic number.

87445603 is a deficient number, since it is larger than the sum of its proper divisors (18371069).

87445603 is a wasteful number, since it uses less digits than its factorization.

87445603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734861.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 87445603 is about 9351.2353729334. The cubic root of 87445603 is about 443.8599831068.

The spelling of 87445603 in words is "eighty-seven million, four hundred forty-five thousand, six hundred three".