69887 has 4 divisors (see below), whose sum is σ = 74016. Its totient is φ = 65760.

The previous prime is 69877. The next prime is 69899. The reversal of 69887 is 78896.

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 69887 - 2¹⁰ = 68863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 69887.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 69887.

It is not an unprimeable number, because it can be changed into a prime (69827) 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, 2039 + ... + 2072.

It is an arithmetic number, because the mean of its divisors is an integer number (18504).

2⁶⁹⁸⁸⁷ is an apocalyptic number.

69887 is a deficient number, since it is larger than the sum of its proper divisors (4129).

69887 is a wasteful number, since it uses less digits than its factorization.

69887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128.

The product of its digits is 24192, while the sum is 38.

The square root of 69887 is about 264.3614949269. The cubic root of 69887 is about 41.1906646144.

Subtracting 69887 from its reverse (78896), we obtain a palindrome (9009).

It can be divided in two parts, 698 and 87, that multiplied together give a triangular number (60726 = T₃₄₈).

The spelling of 69887 in words is "sixty-nine thousand, eight hundred eighty-seven".