68869887 has 8 divisors (see below), whose sum is σ = 91903536. Its totient is φ = 45874752.

The previous prime is 68869877. The next prime is 68869901. The reversal of 68869887 is 78896886.

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

It is not a de Polignac number, because 68869887 - 2¹⁴ = 68853503 is a prime.

It is a super-2 number, since 2×68869887² = 9486122670785538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68869887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68869837) 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, 5158 + ... + 12819.

It is an arithmetic number, because the mean of its divisors is an integer number (11487942).

Almost surely, 2^68869887 is an apocalyptic number.

68869887 is a deficient number, since it is larger than the sum of its proper divisors (23033649).

68869887 is a wasteful number, since it uses less digits than its factorization.

68869887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19257.

The product of its digits is 9289728, while the sum is 60.

The square root of 68869887 is about 8298.7882850450. The cubic root of 68869887 is about 409.8986205817.

The spelling of 68869887 in words is "sixty-eight million, eight hundred sixty-nine thousand, eight hundred eighty-seven".