87808279 has 8 divisors (see below), whose sum is σ = 96762512. Its totient is φ = 79168320.

The previous prime is 87808243. The next prime is 87808307. The reversal of 87808279 is 97280878.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87808279 - 2¹¹ = 87806231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87808879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77982 + ... + 79099.

It is an arithmetic number, because the mean of its divisors is an integer number (12095314).

Almost surely, 2^87808279 is an apocalyptic number.

87808279 is a deficient number, since it is larger than the sum of its proper divisors (8954233).

87808279 is a wasteful number, since it uses less digits than its factorization.

87808279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157137.

The product of its (nonzero) digits is 451584, while the sum is 49.

The square root of 87808279 is about 9370.6071841690. The cubic root of 87808279 is about 444.4727653041.

The spelling of 87808279 in words is "eighty-seven million, eight hundred eight thousand, two hundred seventy-nine".