68076645 has 64 divisors (see below), whose sum is σ = 136733184. Its totient is φ = 28154880.

The previous prime is 68076643. The next prime is 68076647. The reversal of 68076645 is 54667086.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68076643) and next prime (68076647).

It is not a de Polignac number, because 68076645 - 2¹ = 68076643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68076597 and 68076606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68076641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71875 + ... + 72815.

It is an arithmetic number, because the mean of its divisors is an integer number (2136456).

Almost surely, 2^68076645 is an apocalyptic number.

68076645 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68076645 is an abundant number, since it is smaller than the sum of its proper divisors (68656539).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68076645 is a wasteful number, since it uses less digits than its factorization.

68076645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 68076645 is about 8250.8572281915. The cubic root of 68076645 is about 408.3188047957.

The spelling of 68076645 in words is "sixty-eight million, seventy-six thousand, six hundred forty-five".