68210319 has 4 divisors (see below), whose sum is σ = 90947096. Its totient is φ = 45473544.

The previous prime is 68210309. The next prime is 68210357. The reversal of 68210319 is 91301286.

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

It is not a de Polignac number, because 68210319 - 2⁵ = 68210287 is a prime.

It is a super-4 number, since 4×68210319⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68210309) 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, 11368384 + ... + 11368389.

It is an arithmetic number, because the mean of its divisors is an integer number (22736774).

Almost surely, 2^68210319 is an apocalyptic number.

68210319 is a deficient number, since it is larger than the sum of its proper divisors (22736777).

68210319 is a wasteful number, since it uses less digits than its factorization.

68210319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22736776.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 68210319 is about 8258.9538683782. The cubic root of 68210319 is about 408.5858857292.

The spelling of 68210319 in words is "sixty-eight million, two hundred ten thousand, three hundred nineteen".