68370829 has 4 divisors (see below), whose sum is σ = 68725276. Its totient is φ = 68016384.

The previous prime is 68370769. The next prime is 68370871. The reversal of 68370829 is 92807386.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5929225 + 62441604 = 2435^2 + 7902^2 .

It is a cyclic number.

It is not a de Polignac number, because 68370829 - 2⁹ = 68370317 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 (68370899) 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, 176934 + ... + 177319.

It is an arithmetic number, because the mean of its divisors is an integer number (17181319).

Almost surely, 2^68370829 is an apocalyptic number.

It is an amenable number.

68370829 is a deficient number, since it is larger than the sum of its proper divisors (354447).

68370829 is a wasteful number, since it uses less digits than its factorization.

68370829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354446.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 68370829 is about 8268.6654908758. The cubic root of 68370829 is about 408.9061244009.

The spelling of 68370829 in words is "sixty-eight million, three hundred seventy thousand, eight hundred twenty-nine".