68712853 has 4 divisors (see below), whose sum is σ = 74959488. Its totient is φ = 62466220.

The previous prime is 68712851. The next prime is 68712869. The reversal of 68712853 is 35821786.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68712853 - 2¹ = 68712851 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 (68712851) 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, 3123301 + ... + 3123322.

It is an arithmetic number, because the mean of its divisors is an integer number (18739872).

Almost surely, 2^68712853 is an apocalyptic number.

It is an amenable number.

68712853 is a deficient number, since it is larger than the sum of its proper divisors (6246635).

68712853 is a wasteful number, since it uses less digits than its factorization.

68712853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6246634.

The product of its digits is 80640, while the sum is 40.

The square root of 68712853 is about 8289.3216248376. The cubic root of 68712853 is about 409.5868393961.

The spelling of 68712853 in words is "sixty-eight million, seven hundred twelve thousand, eight hundred fifty-three".