87220376 has 16 divisors (see below), whose sum is σ = 165842640. Its totient is φ = 42995680.

The previous prime is 87220333. The next prime is 87220381. The reversal of 87220376 is 67302278.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 76211 + ... + 77346.

It is an arithmetic number, because the mean of its divisors is an integer number (10365165).

Almost surely, 2^87220376 is an apocalyptic number.

It is an amenable number.

87220376 is a deficient number, since it is larger than the sum of its proper divisors (78622264).

87220376 is a wasteful number, since it uses less digits than its factorization.

87220376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153634 (or 153630 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 87220376 is about 9339.1849751464. The cubic root of 87220376 is about 443.4785833194.

The spelling of 87220376 in words is "eighty-seven million, two hundred twenty thousand, three hundred seventy-six".