68900871 has 8 divisors (see below), whose sum is σ = 98934640. Its totient is φ = 42400512.

The previous prime is 68900861. The next prime is 68900899. The reversal of 68900871 is 17800986.

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

It is not a de Polignac number, because 68900871 - 2¹⁰ = 68899847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1766689 = 68900871 / (6 + 8 + 9 + 0 + 0 + 8 + 7 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68900851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 883306 + ... + 883383.

It is an arithmetic number, because the mean of its divisors is an integer number (12366830).

Almost surely, 2^68900871 is an apocalyptic number.

68900871 is a deficient number, since it is larger than the sum of its proper divisors (30033769).

68900871 is a wasteful number, since it uses less digits than its factorization.

68900871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766705.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 68900871 is about 8300.6548536847. The cubic root of 68900871 is about 409.9600813803.

The spelling of 68900871 in words is "sixty-eight million, nine hundred thousand, eight hundred seventy-one".