68430871 has 4 divisors (see below), whose sum is σ = 70280392. Its totient is φ = 66581352.

The previous prime is 68430847. The next prime is 68430893. The reversal of 68430871 is 17803486.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 68430871 - 2¹⁵ = 68398103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 1849483 = 68430871 / (6 + 8 + 4 + 3 + 0 + 8 + 7 + 1).

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 68430871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68430821) 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, 924705 + ... + 924778.

It is an arithmetic number, because the mean of its divisors is an integer number (17570098).

Almost surely, 2^68430871 is an apocalyptic number.

68430871 is a deficient number, since it is larger than the sum of its proper divisors (1849521).

68430871 is a wasteful number, since it uses less digits than its factorization.

68430871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849520.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 68430871 is about 8272.2953888265. The cubic root of 68430871 is about 409.0257873160.

The spelling of 68430871 in words is "sixty-eight million, four hundred thirty thousand, eight hundred seventy-one".