87708445 has 16 divisors (see below), whose sum is σ = 115022592. Its totient is φ = 63674560.

The previous prime is 87708443. The next prime is 87708451. The reversal of 87708445 is 54480778.

It is not a de Polignac number, because 87708445 - 2¹ = 87708443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87708443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41484 + ... + 43546.

It is an arithmetic number, because the mean of its divisors is an integer number (7188912).

Almost surely, 2^87708445 is an apocalyptic number.

It is an amenable number.

87708445 is a deficient number, since it is larger than the sum of its proper divisors (27314147).

87708445 is a wasteful number, since it uses less digits than its factorization.

87708445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852.

The product of its (nonzero) digits is 250880, while the sum is 43.

The square root of 87708445 is about 9365.2786931303. The cubic root of 87708445 is about 444.3042530178.

The spelling of 87708445 in words is "eighty-seven million, seven hundred eight thousand, four hundred forty-five".