87876865 has 16 divisors (see below), whose sum is σ = 107525952. Its totient is φ = 68929344.

The previous prime is 87876863. The next prime is 87876871. The reversal of 87876865 is 56867878.

It is a cyclic number.

It is not a de Polignac number, because 87876865 - 2¹ = 87876863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87876863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92322 + ... + 93268.

It is an arithmetic number, because the mean of its divisors is an integer number (6720372).

Almost surely, 2^87876865 is an apocalyptic number.

It is an amenable number.

87876865 is a deficient number, since it is larger than the sum of its proper divisors (19649087).

87876865 is a wasteful number, since it uses less digits than its factorization.

87876865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296.

The product of its digits is 4515840, while the sum is 55.

The square root of 87876865 is about 9374.2661046079. The cubic root of 87876865 is about 444.5884593131.

The spelling of 87876865 in words is "eighty-seven million, eight hundred seventy-six thousand, eight hundred sixty-five".