68644734 has 8 divisors (see below), whose sum is σ = 137289480. Its totient is φ = 22881576.

The previous prime is 68644661. The next prime is 68644787. The reversal of 68644734 is 43744686.

It is a sphenic number, since it is the product of 3 distinct primes.

68644734 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5720389 + ... + 5720400.

It is an arithmetic number, because the mean of its divisors is an integer number (17161185).

Almost surely, 2^68644734 is an apocalyptic number.

68644734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68644734 is a wasteful number, since it uses less digits than its factorization.

68644734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11440794.

The product of its digits is 387072, while the sum is 42.

The square root of 68644734 is about 8285.2117655495. The cubic root of 68644734 is about 409.4514456543.

It can be divided in two parts, 68644 and 734, that added together give a triangular number (69378 = T₃₇₂).

The spelling of 68644734 in words is "sixty-eight million, six hundred forty-four thousand, seven hundred thirty-four".