68593481 has 4 divisors (see below), whose sum is σ = 74829264. Its totient is φ = 62357700.

The previous prime is 68593433. The next prime is 68593489. The reversal of 68593481 is 18439586.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68593481 - 2¹⁴ = 68577097 is a prime.

It is a super-2 number, since 2×68593481² = 9410131271394722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68593489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3117875 + ... + 3117896.

It is an arithmetic number, because the mean of its divisors is an integer number (18707316).

Almost surely, 2^68593481 is an apocalyptic number.

It is an amenable number.

68593481 is a deficient number, since it is larger than the sum of its proper divisors (6235783).

68593481 is a wasteful number, since it uses less digits than its factorization.

68593481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6235782.

The product of its digits is 207360, while the sum is 44.

The square root of 68593481 is about 8282.1181469477. The cubic root of 68593481 is about 409.3495158155.

The spelling of 68593481 in words is "sixty-eight million, five hundred ninety-three thousand, four hundred eighty-one".