68357645 has 16 divisors (see below), whose sum is σ = 83064960. Its totient is φ = 54001344.

The previous prime is 68357617. The next prime is 68357647. The reversal of 68357645 is 54675386.

It is a cyclic number.

It is not a de Polignac number, because 68357645 - 2¹⁴ = 68341261 is a prime.

It is a super-3 number, since 3×68357645³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68357596 and 68357605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68357647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259784 + ... + 260046.

It is an arithmetic number, because the mean of its divisors is an integer number (5191560).

Almost surely, 2^68357645 is an apocalyptic number.

It is an amenable number.

68357645 is a deficient number, since it is larger than the sum of its proper divisors (14707315).

68357645 is a wasteful number, since it uses less digits than its factorization.

68357645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724.

The product of its digits is 604800, while the sum is 44.

The square root of 68357645 is about 8267.8682258488. The cubic root of 68357645 is about 408.8798394829.

The spelling of 68357645 in words is "sixty-eight million, three hundred fifty-seven thousand, six hundred forty-five".