87220324 has 24 divisors (see below), whose sum is σ = 160509888. Its totient is φ = 41389920.

The previous prime is 87220277. The next prime is 87220333. The reversal of 87220324 is 42302278.

It is a junction number, because it is equal to n+sod(n) for n = 87220292 and 87220301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8434 + ... + 15670.

It is an arithmetic number, because the mean of its divisors is an integer number (6687912).

Almost surely, 2^87220324 is an apocalyptic number.

It is an amenable number.

87220324 is a deficient number, since it is larger than the sum of its proper divisors (73289564).

87220324 is a wasteful number, since it uses less digits than its factorization.

87220324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7395 (or 7393 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 87220324 is about 9339.1821911771. The cubic root of 87220324 is about 443.4784951868.

The spelling of 87220324 in words is "eighty-seven million, two hundred twenty thousand, three hundred twenty-four".