67966751 has 6 divisors (see below), whose sum is σ = 68319240. Its totient is φ = 67616036.

The previous prime is 67966739. The next prime is 67966753. The reversal of 67966751 is 15766976.

It is a happy number.

It is not a de Polignac number, because 67966751 - 2¹⁰ = 67965727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67966696 and 67966705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67966753) 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 5 ways as a sum of consecutive naturals, for example, 50870 + ... + 52188.

It is an arithmetic number, because the mean of its divisors is an integer number (11386540).

Almost surely, 2^67966751 is an apocalyptic number.

67966751 is a deficient number, since it is larger than the sum of its proper divisors (352489).

67966751 is an equidigital number, since it uses as much as digits as its factorization.

67966751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773 (or 1546 counting only the distinct ones).

The product of its digits is 476280, while the sum is 47.

The square root of 67966751 is about 8244.1949879900. The cubic root of 67966751 is about 408.0989743705.

The spelling of 67966751 in words is "sixty-seven million, nine hundred sixty-six thousand, seven hundred fifty-one".