68217357 has 24 divisors (see below), whose sum is σ = 99136224. Its totient is φ = 41705664.

The previous prime is 68217349. The next prime is 68217377. The reversal of 68217357 is 75371286.

It is not a de Polignac number, because 68217357 - 2³ = 68217349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68217377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99538 + ... + 100220.

It is an arithmetic number, because the mean of its divisors is an integer number (4130676).

Almost surely, 2^68217357 is an apocalyptic number.

It is an amenable number.

68217357 is a deficient number, since it is larger than the sum of its proper divisors (30918867).

68217357 is a wasteful number, since it uses less digits than its factorization.

68217357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909 (or 896 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The square root of 68217357 is about 8259.3799404071. The cubic root of 68217357 is about 408.5999379949.

The spelling of 68217357 in words is "sixty-eight million, two hundred seventeen thousand, three hundred fifty-seven".