87944 has 8 divisors (see below), whose sum is σ = 164910. Its totient is φ = 43968.

The previous prime is 87943. The next prime is 87959. The reversal of 87944 is 44978.

87944 = 17² + 18² + ... + 64².

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 84100 + 3844 = 290^2 + 62^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 87944.

It is not an unprimeable number, because it can be changed into a prime (87943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5489 + ... + 5504.

2⁸⁷⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

87944 is a deficient number, since it is larger than the sum of its proper divisors (76966).

87944 is a wasteful number, since it uses less digits than its factorization.

87944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10999 (or 10995 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 87944 is about 296.5535364820. The cubic root of 87944 is about 44.4701647422.

It can be divided in two parts, 87 and 944, that multiplied together give a palindrome (82128).

The spelling of 87944 in words is "eighty-seven thousand, nine hundred forty-four".