87377917 has 8 divisors (see below), whose sum is σ = 96050592. Its totient is φ = 78826800.

The previous prime is 87377911. The next prime is 87377947. The reversal of 87377917 is 71977378.

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 87377917 - 2¹⁵ = 87345149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87377911) 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, 28878 + ... + 31759.

It is an arithmetic number, because the mean of its divisors is an integer number (12006324).

Almost surely, 2^87377917 is an apocalyptic number.

It is an amenable number.

87377917 is a deficient number, since it is larger than the sum of its proper divisors (8672675).

87377917 is a wasteful number, since it uses less digits than its factorization.

87377917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60779.

The product of its digits is 518616, while the sum is 49.

The square root of 87377917 is about 9347.6155783173. The cubic root of 87377917 is about 443.7454324201.

The spelling of 87377917 in words is "eighty-seven million, three hundred seventy-seven thousand, nine hundred seventeen".