68213307 has 8 divisors (see below), whose sum is σ = 94087440. Its totient is φ = 43907360.

The previous prime is 68213293. The next prime is 68213359. The reversal of 68213307 is 70331286.

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

It is a cyclic number.

It is not a de Polignac number, because 68213307 - 2⁴ = 68213291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68213107) 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, 391944 + ... + 392117.

It is an arithmetic number, because the mean of its divisors is an integer number (11760930).

Almost surely, 2^68213307 is an apocalyptic number.

68213307 is a deficient number, since it is larger than the sum of its proper divisors (25874133).

68213307 is a wasteful number, since it uses less digits than its factorization.

68213307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784093.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 68213307 is about 8259.1347609783. The cubic root of 68213307 is about 408.5918517708.

The spelling of 68213307 in words is "sixty-eight million, two hundred thirteen thousand, three hundred seven".