87228458 has 4 divisors (see below), whose sum is σ = 130842690. Its totient is φ = 43614228.

The previous prime is 87228437. The next prime is 87228461. The reversal of 87228458 is 85482278.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50225569 + 37002889 = 7087^2 + 6083^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21807113 + ... + 21807116.

Almost surely, 2^87228458 is an apocalyptic number.

87228458 is a deficient number, since it is larger than the sum of its proper divisors (43614232).

87228458 is a wasteful number, since it uses less digits than its factorization.

87228458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43614231.

The product of its digits is 286720, while the sum is 44.

The square root of 87228458 is about 9339.6176581271. The cubic root of 87228458 is about 443.4922807427.

The spelling of 87228458 in words is "eighty-seven million, two hundred twenty-eight thousand, four hundred fifty-eight".