68898871 has 4 divisors (see below), whose sum is σ = 68935144. Its totient is φ = 68862600.

The previous prime is 68898853. The next prime is 68898911. The reversal of 68898871 is 17889886.

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 68898871 - 2⁵ = 68898839 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 (68898811) 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, 15120 + ... + 19141.

It is an arithmetic number, because the mean of its divisors is an integer number (17233786).

Almost surely, 2^68898871 is an apocalyptic number.

68898871 is a deficient number, since it is larger than the sum of its proper divisors (36273).

68898871 is a wasteful number, since it uses less digits than its factorization.

68898871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36272.

The product of its digits is 1548288, while the sum is 55.

The square root of 68898871 is about 8300.5343803878. The cubic root of 68898871 is about 409.9561146762.

The spelling of 68898871 in words is "sixty-eight million, eight hundred ninety-eight thousand, eight hundred seventy-one".