68643734 has 8 divisors (see below), whose sum is σ = 106287168. Its totient is φ = 33214680.

The previous prime is 68643691. The next prime is 68643737. The reversal of 68643734 is 43734686.

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

It is a super-3 number, since 3×68643734³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68643691 and 68643700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68643737) 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, 553517 + ... + 553640.

It is an arithmetic number, because the mean of its divisors is an integer number (13285896).

Almost surely, 2^68643734 is an apocalyptic number.

68643734 is a deficient number, since it is larger than the sum of its proper divisors (37643434).

68643734 is a wasteful number, since it uses less digits than its factorization.

68643734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107190.

The product of its digits is 290304, while the sum is 41.

The square root of 68643734 is about 8285.1514168421. The cubic root of 68643734 is about 409.4494573812.

The spelling of 68643734 in words is "sixty-eight million, six hundred forty-three thousand, seven hundred thirty-four".