87727717 has 8 divisors (see below), whose sum is σ = 109374912. Its totient is φ = 68359200.

The previous prime is 87727711. The next prime is 87727729. The reversal of 87727717 is 71772778.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87727717 - 2¹¹ = 87725669 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 (87727711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569584 + ... + 569737.

It is an arithmetic number, because the mean of its divisors is an integer number (13671864).

Almost surely, 2^87727717 is an apocalyptic number.

It is an amenable number.

87727717 is a deficient number, since it is larger than the sum of its proper divisors (21647195).

87727717 is a wasteful number, since it uses less digits than its factorization.

87727717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139339.

The product of its digits is 268912, while the sum is 46.

The square root of 87727717 is about 9366.3075435307. The cubic root of 87727717 is about 444.3367926609.

It can be divided in two parts, 8772771 and 7, that added together give a palindrome (8772778).

The spelling of 87727717 in words is "eighty-seven million, seven hundred twenty-seven thousand, seven hundred seventeen".