87877879 has 8 divisors (see below), whose sum is σ = 93130128. Its totient is φ = 82634880.

The previous prime is 87877843. The next prime is 87877897. The reversal of 87877879 is 97877878.

It is a happy number.

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 87877879 - 2¹¹ = 87875831 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 (87874879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31489 + ... + 34165.

It is an arithmetic number, because the mean of its divisors is an integer number (11641266).

Almost surely, 2^87877879 is an apocalyptic number.

87877879 is a deficient number, since it is larger than the sum of its proper divisors (5252249).

87877879 is a wasteful number, since it uses less digits than its factorization.

87877879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4625.

The product of its digits is 11063808, while the sum is 61.

The square root of 87877879 is about 9374.3201886857. The cubic root of 87877879 is about 444.5901693232.

Subtracting 87877879 from its reverse (97877878), we obtain a palindrome (9999999).

The spelling of 87877879 in words is "eighty-seven million, eight hundred seventy-seven thousand, eight hundred seventy-nine".