68257211 has 8 divisors (see below), whose sum is σ = 76194624. Its totient is φ = 60608520.

The previous prime is 68257153. The next prime is 68257247. The reversal of 68257211 is 11275286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68257211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68257411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71681 + ... + 72626.

It is an arithmetic number, because the mean of its divisors is an integer number (9524328).

Almost surely, 2^68257211 is an apocalyptic number.

68257211 is a deficient number, since it is larger than the sum of its proper divisors (7937413).

68257211 is a wasteful number, since it uses less digits than its factorization.

68257211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144361.

The product of its digits is 6720, while the sum is 32.

The square root of 68257211 is about 8261.7922389758. The cubic root of 68257211 is about 408.6794933674.

The spelling of 68257211 in words is "sixty-eight million, two hundred fifty-seven thousand, two hundred eleven".