68100392 has 8 divisors (see below), whose sum is σ = 127688250. Its totient is φ = 34050192.

The previous prime is 68100391. The next prime is 68100443. The reversal of 68100392 is 29300186.

It can be written as a sum of positive squares in only one way, i.e., 61371556 + 6728836 = 7834^2 + 2594^2 .

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

It is not an unprimeable number, because it can be changed into a prime (68100391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4256267 + ... + 4256282.

Almost surely, 2^68100392 is an apocalyptic number.

It is an amenable number.

68100392 is a deficient number, since it is larger than the sum of its proper divisors (59587858).

68100392 is a wasteful number, since it uses less digits than its factorization.

68100392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8512555 (or 8512551 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 68100392 is about 8252.2961653106. The cubic root of 68100392 is about 408.3662768738.

The spelling of 68100392 in words is "sixty-eight million, one hundred thousand, three hundred ninety-two".