68317653 has 16 divisors (see below), whose sum is σ = 92630016. Its totient is φ = 44782080.

The previous prime is 68317609. The next prime is 68317663. The reversal of 68317653 is 35671386.

It is not a de Polignac number, because 68317653 - 2¹⁶ = 68252117 is a prime.

It is a super-2 number, since 2×68317653² = 9334603422856818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68317663) 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, 45708 + ... + 47178.

It is an arithmetic number, because the mean of its divisors is an integer number (5789376).

Almost surely, 2^68317653 is an apocalyptic number.

It is an amenable number.

68317653 is a deficient number, since it is larger than the sum of its proper divisors (24312363).

68317653 is a wasteful number, since it uses less digits than its factorization.

68317653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724.

The product of its digits is 90720, while the sum is 39.

The square root of 68317653 is about 8265.4493525761. The cubic root of 68317653 is about 408.8000868212.

It can be divided in two parts, 683 and 17653, that added together give a triangular number (18336 = T₁₉₁).

The spelling of 68317653 in words is "sixty-eight million, three hundred seventeen thousand, six hundred fifty-three".