68489534 has 4 divisors (see below), whose sum is σ = 102734304. Its totient is φ = 34244766.

The previous prime is 68489467. The next prime is 68489567. The reversal of 68489534 is 43598486.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43598486 = 2 ⋅21799243.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17122382 + ... + 17122385.

It is an arithmetic number, because the mean of its divisors is an integer number (25683576).

Almost surely, 2^68489534 is an apocalyptic number.

68489534 is a deficient number, since it is larger than the sum of its proper divisors (34244770).

68489534 is a wasteful number, since it uses less digits than its factorization.

68489534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34244769.

The product of its digits is 829440, while the sum is 47.

The square root of 68489534 is about 8275.8403802877. The cubic root of 68489534 is about 409.1426343186.

The spelling of 68489534 in words is "sixty-eight million, four hundred eighty-nine thousand, five hundred thirty-four".