87504922 has 4 divisors (see below), whose sum is σ = 131257386. Its totient is φ = 43752460.

The previous prime is 87504917. The next prime is 87504943. The reversal of 87504922 is 22940578.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22940578 = 2 ⋅11470289.

It can be written as a sum of positive squares in only one way, i.e., 70207641 + 17297281 = 8379^2 + 4159^2 .

It is a super-2 number, since 2×87504922² = 15314222748452168, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21876229 + ... + 21876232.

Almost surely, 2^87504922 is an apocalyptic number.

87504922 is a deficient number, since it is larger than the sum of its proper divisors (43752464).

87504922 is a wasteful number, since it uses less digits than its factorization.

87504922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43752463.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 87504922 is about 9354.4065552017. The cubic root of 87504922 is about 443.9603250266.

The spelling of 87504922 in words is "eighty-seven million, five hundred four thousand, nine hundred twenty-two".