87752077 has 4 divisors (see below), whose sum is σ = 100288096. Its totient is φ = 75216060.

The previous prime is 87752029. The next prime is 87752081. The reversal of 87752077 is 77025778.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77025778 = 2 ⋅38512889.

It is a cyclic number.

It is not a de Polignac number, because 87752077 - 2¹¹ = 87750029 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 (87752087) 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 3 ways as a sum of consecutive naturals, for example, 6267999 + ... + 6268012.

It is an arithmetic number, because the mean of its divisors is an integer number (25072024).

Almost surely, 2^87752077 is an apocalyptic number.

It is an amenable number.

87752077 is a deficient number, since it is larger than the sum of its proper divisors (12536019).

87752077 is a wasteful number, since it uses less digits than its factorization.

87752077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12536018.

The product of its (nonzero) digits is 192080, while the sum is 43.

The square root of 87752077 is about 9367.6078590001. The cubic root of 87752077 is about 444.3779162758.

The spelling of 87752077 in words is "eighty-seven million, seven hundred fifty-two thousand, seventy-seven".