68387397 has 16 divisors (see below), whose sum is σ = 100289280. Its totient is φ = 41188032.

The previous prime is 68387393. The next prime is 68387399. The reversal of 68387397 is 79378386.

It is not a de Polignac number, because 68387397 - 2² = 68387393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68387393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16822 + ... + 20487.

It is an arithmetic number, because the mean of its divisors is an integer number (6268080).

Almost surely, 2^68387397 is an apocalyptic number.

It is an amenable number.

68387397 is a deficient number, since it is larger than the sum of its proper divisors (31901883).

68387397 is a wasteful number, since it uses less digits than its factorization.

68387397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37372.

The product of its digits is 1524096, while the sum is 51.

The square root of 68387397 is about 8269.6672847219. The cubic root of 68387397 is about 408.9391512030.

The spelling of 68387397 in words is "sixty-eight million, three hundred eighty-seven thousand, three hundred ninety-seven".