87876819 has 24 divisors (see below), whose sum is σ = 132950272. Its totient is φ = 57999240.

The previous prime is 87876799. The next prime is 87876851. The reversal of 87876819 is 91867878.

It is not a de Polignac number, because 87876819 - 2¹² = 87872723 is a prime.

It is a super-2 number, since 2×87876819² = 15444670635117522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87876619) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23274 + ... + 26784.

Almost surely, 2^87876819 is an apocalyptic number.

87876819 is a deficient number, since it is larger than the sum of its proper divisors (45073453).

87876819 is a wasteful number, since it uses less digits than its factorization.

87876819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629 (or 3617 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 54.

The square root of 87876819 is about 9374.2636510821. The cubic root of 87876819 is about 444.5883817384.

The spelling of 87876819 in words is "eighty-seven million, eight hundred seventy-six thousand, eight hundred nineteen".