68647741 has 4 divisors (see below), whose sum is σ = 72260800. Its totient is φ = 65034684.

The previous prime is 68647721. The next prime is 68647757. The reversal of 68647741 is 14774686.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68647741 - 2¹⁹ = 68123453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68647721) 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, 1806501 + ... + 1806538.

It is an arithmetic number, because the mean of its divisors is an integer number (18065200).

Almost surely, 2^68647741 is an apocalyptic number.

It is an amenable number.

68647741 is a deficient number, since it is larger than the sum of its proper divisors (3613059).

68647741 is a wasteful number, since it uses less digits than its factorization.

68647741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613058.

The product of its digits is 225792, while the sum is 43.

The square root of 68647741 is about 8285.3932314646. The cubic root of 68647741 is about 409.4574242752.

The spelling of 68647741 in words is "sixty-eight million, six hundred forty-seven thousand, seven hundred forty-one".