68537207 has 4 divisors (see below), whose sum is σ = 68569536. Its totient is φ = 68504880.

The previous prime is 68537197. The next prime is 68537213. The reversal of 68537207 is 70273586.

It is a happy number.

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 68537207 - 2⁶ = 68537143 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 (68537407) 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, 12743 + ... + 17304.

It is an arithmetic number, because the mean of its divisors is an integer number (17142384).

Almost surely, 2^68537207 is an apocalyptic number.

68537207 is a deficient number, since it is larger than the sum of its proper divisors (32329).

68537207 is a wasteful number, since it uses less digits than its factorization.

68537207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32328.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 68537207 is about 8278.7201305516. The cubic root of 68537207 is about 409.2375419239.

The spelling of 68537207 in words is "sixty-eight million, five hundred thirty-seven thousand, two hundred seven".