68219835 has 32 divisors (see below), whose sum is σ = 111481920. Its totient is φ = 35616768.

The previous prime is 68219831. The next prime is 68219843. The reversal of 68219835 is 53891286.

It is not a de Polignac number, because 68219835 - 2² = 68219831 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68219831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182709 + ... + 183081.

It is an arithmetic number, because the mean of its divisors is an integer number (3483810).

Almost surely, 2^68219835 is an apocalyptic number.

68219835 is a deficient number, since it is larger than the sum of its proper divisors (43262085).

68219835 is a wasteful number, since it uses less digits than its factorization.

68219835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607.

The product of its digits is 103680, while the sum is 42.

The square root of 68219835 is about 8259.5299503059. The cubic root of 68219835 is about 408.6048854082.

The spelling of 68219835 in words is "sixty-eight million, two hundred nineteen thousand, eight hundred thirty-five".