87232621 has 8 divisors (see below), whose sum is σ = 101384640. Its totient is φ = 73503168.

The previous prime is 87232619. The next prime is 87232631. The reversal of 87232621 is 12623278.

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 87232621 - 2¹ = 87232619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87232631) 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, 105196 + ... + 106021.

It is an arithmetic number, because the mean of its divisors is an integer number (12673080).

Almost surely, 2^87232621 is an apocalyptic number.

It is an amenable number.

87232621 is a deficient number, since it is larger than the sum of its proper divisors (14152019).

87232621 is a wasteful number, since it uses less digits than its factorization.

87232621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211283.

The product of its digits is 8064, while the sum is 31.

The square root of 87232621 is about 9339.8405232638. The cubic root of 87232621 is about 443.4993358905.

Adding to 87232621 its reverse (12623278), we get a palindrome (99855899).

The spelling of 87232621 in words is "eighty-seven million, two hundred thirty-two thousand, six hundred twenty-one".