68373647 has 4 divisors (see below), whose sum is σ = 71972280. Its totient is φ = 64775016.

The previous prime is 68373611. The next prime is 68373653. The reversal of 68373647 is 74637386.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74637386 = 2 ⋅37318693.

It is a cyclic number.

It is not a de Polignac number, because 68373647 - 2⁶ = 68373583 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68373598 and 68373607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68373047) 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, 1799288 + ... + 1799325.

It is an arithmetic number, because the mean of its divisors is an integer number (17993070).

Almost surely, 2^68373647 is an apocalyptic number.

68373647 is a deficient number, since it is larger than the sum of its proper divisors (3598633).

68373647 is a wasteful number, since it uses less digits than its factorization.

68373647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3598632.

The product of its digits is 508032, while the sum is 44.

The square root of 68373647 is about 8268.8358914662. The cubic root of 68373647 is about 408.9117422043.

The spelling of 68373647 in words is "sixty-eight million, three hundred seventy-three thousand, six hundred forty-seven".