87565344 has 48 divisors (see below), whose sum is σ = 230342112. Its totient is φ = 29127168.

The previous prime is 87565343. The next prime is 87565349. The reversal of 87565344 is 44356578.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 87565296 and 87565305.

It is not an unprimeable number, because it can be changed into a prime (87565343) 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, 84252 + ... + 85284.

It is an arithmetic number, because the mean of its divisors is an integer number (4798794).

Almost surely, 2^87565344 is an apocalyptic number.

It is an amenable number.

87565344 is an abundant number, since it is smaller than the sum of its proper divisors (142776768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87565344 is a wasteful number, since it uses less digits than its factorization.

87565344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929 (or 1921 counting only the distinct ones).

The product of its digits is 403200, while the sum is 42.

The square root of 87565344 is about 9357.6355988038. The cubic root of 87565344 is about 444.0624861330.

The spelling of 87565344 in words is "eighty-seven million, five hundred sixty-five thousand, three hundred forty-four".