87228784 has 10 divisors (see below), whose sum is σ = 169005800. Its totient is φ = 43614384.

The previous prime is 87228773. The next prime is 87228793. The reversal of 87228784 is 48782278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2725884 + ... + 2725915.

It is an arithmetic number, because the mean of its divisors is an integer number (16900580).

Almost surely, 2^87228784 is an apocalyptic number.

It is an amenable number.

87228784 is a deficient number, since it is larger than the sum of its proper divisors (81777016).

87228784 is a wasteful number, since it uses less digits than its factorization.

87228784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5451807 (or 5451801 counting only the distinct ones).

The product of its digits is 401408, while the sum is 46.

The square root of 87228784 is about 9339.6351106454. The cubic root of 87228784 is about 443.4928332317.

The spelling of 87228784 in words is "eighty-seven million, two hundred twenty-eight thousand, seven hundred eighty-four".