68602821 has 8 divisors (see below), whose sum is σ = 104537664. Its totient is φ = 39201600.

The previous prime is 68602757. The next prime is 68602867. The reversal of 68602821 is 12820686.

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

It is not a de Polignac number, because 68602821 - 2⁶ = 68602757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68602421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1633380 + ... + 1633421.

It is an arithmetic number, because the mean of its divisors is an integer number (13067208).

Almost surely, 2^68602821 is an apocalyptic number.

It is an amenable number.

68602821 is a deficient number, since it is larger than the sum of its proper divisors (35934843).

68602821 is a wasteful number, since it uses less digits than its factorization.

68602821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3266811.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 68602821 is about 8282.6819931711. The cubic root of 68602821 is about 409.3680946022.

The spelling of 68602821 in words is "sixty-eight million, six hundred two thousand, eight hundred twenty-one".