68219896 has 8 divisors (see below), whose sum is σ = 127912320. Its totient is φ = 34109944.

The previous prime is 68219891. The next prime is 68219911. The reversal of 68219896 is 69891286.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68219891) 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 as a sum of consecutive naturals, namely, 4263736 + ... + 4263751.

It is an arithmetic number, because the mean of its divisors is an integer number (15989040).

Almost surely, 2^68219896 is an apocalyptic number.

It is an amenable number.

68219896 is a deficient number, since it is larger than the sum of its proper divisors (59692424).

68219896 is a wasteful number, since it uses less digits than its factorization.

68219896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8527493 (or 8527489 counting only the distinct ones).

The product of its digits is 373248, while the sum is 49.

The square root of 68219896 is about 8259.5336430091. The cubic root of 68219896 is about 408.6050071953.

The spelling of 68219896 in words is "sixty-eight million, two hundred nineteen thousand, eight hundred ninety-six".