87466221 has 24 divisors (see below), whose sum is σ = 131040000. Its totient is φ = 56160000.

The previous prime is 87466199. The next prime is 87466229. The reversal of 87466221 is 12266478.

It is not a de Polignac number, because 87466221 - 2⁵ = 87466189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87466229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69405 + ... + 70653.

It is an arithmetic number, because the mean of its divisors is an integer number (5460000).

Almost surely, 2^87466221 is an apocalyptic number.

It is an amenable number.

87466221 is a deficient number, since it is larger than the sum of its proper divisors (43573779).

87466221 is a wasteful number, since it uses less digits than its factorization.

87466221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537 (or 1534 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 87466221 is about 9352.3377291456. The cubic root of 87466221 is about 443.8948649292.

The spelling of 87466221 in words is "eighty-seven million, four hundred sixty-six thousand, two hundred twenty-one".