68661734 has 16 divisors (see below), whose sum is σ = 108140400. Its totient is φ = 32650464.

The previous prime is 68661731. The next prime is 68661737. The reversal of 68661734 is 43716686.

It is an interprime number because it is at equal distance from previous prime (68661731) and next prime (68661737).

It is a junction number, because it is equal to n+sod(n) for n = 68661691 and 68661700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68661731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4949 + ... + 12720.

It is an arithmetic number, because the mean of its divisors is an integer number (6758775).

Almost surely, 2^68661734 is an apocalyptic number.

68661734 is a deficient number, since it is larger than the sum of its proper divisors (39478666).

68661734 is a wasteful number, since it uses less digits than its factorization.

68661734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17767.

The product of its digits is 145152, while the sum is 41.

The square root of 68661734 is about 8286.2376263296. The cubic root of 68661734 is about 409.4852433430.

The spelling of 68661734 in words is "sixty-eight million, six hundred sixty-one thousand, seven hundred thirty-four".