87102077 has 4 divisors (see below), whose sum is σ = 88402176. Its totient is φ = 85801980.

The previous prime is 87102073. The next prime is 87102091. The reversal of 87102077 is 77020178.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87102077 - 2² = 87102073 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 (87102073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649949 + ... + 650082.

It is an arithmetic number, because the mean of its divisors is an integer number (22100544).

Almost surely, 2^87102077 is an apocalyptic number.

It is an amenable number.

87102077 is a deficient number, since it is larger than the sum of its proper divisors (1300099).

87102077 is a wasteful number, since it uses less digits than its factorization.

87102077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300098.

The product of its (nonzero) digits is 5488, while the sum is 32.

The square root of 87102077 is about 9332.8493505467. The cubic root of 87102077 is about 443.2779925394.

The spelling of 87102077 in words is "eighty-seven million, one hundred two thousand, seventy-seven".