68996747 has 2 divisors, whose sum is σ = 68996748. Its totient is φ = 68996746.

The previous prime is 68996743. The next prime is 68996773. The reversal of 68996747 is 74769986.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68996747 - 2² = 68996743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68996692 and 68996701.

It is not a weakly prime, because it can be changed into another prime (68996743) 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, 34498373 + 34498374.

It is an arithmetic number, because the mean of its divisors is an integer number (34498374).

Almost surely, 2^68996747 is an apocalyptic number.

68996747 is a deficient number, since it is larger than the sum of its proper divisors (1).

68996747 is an equidigital number, since it uses as much as digits as its factorization.

68996747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 56.

The square root of 68996747 is about 8306.4280530201. The cubic root of 68996747 is about 410.1501472680.

The spelling of 68996747 in words is "sixty-eight million, nine hundred ninety-six thousand, seven hundred forty-seven".