68957659 has 2 divisors, whose sum is σ = 68957660. Its totient is φ = 68957658.

The previous prime is 68957617. The next prime is 68957663. The reversal of 68957659 is 95675986.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68957659 - 2¹⁹ = 68433371 is a prime.

It is not a weakly prime, because it can be changed into another prime (68957689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34478829 + 34478830.

It is an arithmetic number, because the mean of its divisors is an integer number (34478830).

Almost surely, 2^68957659 is an apocalyptic number.

68957659 is a deficient number, since it is larger than the sum of its proper divisors (1).

68957659 is an equidigital number, since it uses as much as digits as its factorization.

68957659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4082400, while the sum is 55.

The square root of 68957659 is about 8304.0748431117. The cubic root of 68957659 is about 410.0726799570.

The spelling of 68957659 in words is "sixty-eight million, nine hundred fifty-seven thousand, six hundred fifty-nine".