87934879 has 4 divisors (see below), whose sum is σ = 90771520. Its totient is φ = 85098240.

The previous prime is 87934877. The next prime is 87934933. The reversal of 87934879 is 97843978.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87934879 - 2¹ = 87934877 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 (87934877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418274 + ... + 1418335.

It is an arithmetic number, because the mean of its divisors is an integer number (22692880).

Almost surely, 2^87934879 is an apocalyptic number.

87934879 is a deficient number, since it is larger than the sum of its proper divisors (2836641).

87934879 is a wasteful number, since it uses less digits than its factorization.

87934879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836640.

The product of its digits is 3048192, while the sum is 55.

The square root of 87934879 is about 9377.3599163091. The cubic root of 87934879 is about 444.6862730026.

Subtracting 87934879 from its reverse (97843978), we obtain a palindrome (9909099).

The spelling of 87934879 in words is "eighty-seven million, nine hundred thirty-four thousand, eight hundred seventy-nine".