68841493 has 16 divisors (see below), whose sum is σ = 79888384. Its totient is φ = 58106160.

The previous prime is 68841491. The next prime is 68841527. The reversal of 68841493 is 39414886.

It is not a de Polignac number, because 68841493 - 2¹ = 68841491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68841491) 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, 187396 + ... + 187762.

It is an arithmetic number, because the mean of its divisors is an integer number (4993024).

Almost surely, 2^68841493 is an apocalyptic number.

It is an amenable number.

68841493 is a deficient number, since it is larger than the sum of its proper divisors (11046891).

68841493 is a wasteful number, since it uses less digits than its factorization.

68841493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712.

The product of its digits is 165888, while the sum is 43.

The square root of 68841493 is about 8297.0773770045. The cubic root of 68841493 is about 409.8422811965.

The spelling of 68841493 in words is "sixty-eight million, eight hundred forty-one thousand, four hundred ninety-three".