87870322 has 4 divisors (see below), whose sum is σ = 131805486. Its totient is φ = 43935160.

The previous prime is 87870311. The next prime is 87870347. The reversal of 87870322 is 22307878.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22307878 = 2 ⋅11153939.

It can be written as a sum of positive squares in only one way, i.e., 51279921 + 36590401 = 7161^2 + 6049^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21967579 + ... + 21967582.

Almost surely, 2^87870322 is an apocalyptic number.

87870322 is a deficient number, since it is larger than the sum of its proper divisors (43935164).

87870322 is a wasteful number, since it uses less digits than its factorization.

87870322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43935163.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 87870322 is about 9373.9171107921. The cubic root of 87870322 is about 444.5774248788.

The spelling of 87870322 in words is "eighty-seven million, eight hundred seventy thousand, three hundred twenty-two".