68898971 has 2 divisors, whose sum is σ = 68898972. Its totient is φ = 68898970.

The previous prime is 68898937. The next prime is 68899013. The reversal of 68898971 is 17989886.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68898971 - 2¹⁰ = 68897947 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (68898911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34449485 + 34449486.

It is an arithmetic number, because the mean of its divisors is an integer number (34449486).

Almost surely, 2^68898971 is an apocalyptic number.

68898971 is a deficient number, since it is larger than the sum of its proper divisors (1).

68898971 is an equidigital number, since it uses as much as digits as its factorization.

68898971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 56.

The square root of 68898971 is about 8300.5404040942. The cubic root of 68898971 is about 409.9563130132.

The spelling of 68898971 in words is "sixty-eight million, eight hundred ninety-eight thousand, nine hundred seventy-one".