87224641 has 8 divisors (see below), whose sum is σ = 99751104. Its totient is φ = 74714640.

The previous prime is 87224639. The next prime is 87224659. The reversal of 87224641 is 14642278.

It is a happy number.

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

It is not a de Polignac number, because 87224641 - 2¹ = 87224639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87224597 and 87224606.

It is not an unprimeable number, because it can be changed into a prime (87224341) 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, 10911 + ... + 17131.

It is an arithmetic number, because the mean of its divisors is an integer number (12468888).

Almost surely, 2^87224641 is an apocalyptic number.

It is an amenable number.

87224641 is a deficient number, since it is larger than the sum of its proper divisors (12526463).

87224641 is a wasteful number, since it uses less digits than its factorization.

87224641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8231.

The product of its digits is 21504, while the sum is 34.

The square root of 87224641 is about 9339.4133113381. The cubic root of 87224641 is about 443.4858117731.

The spelling of 87224641 in words is "eighty-seven million, two hundred twenty-four thousand, six hundred forty-one".