68603643 has 6 divisors (see below), whose sum is σ = 99094164. Its totient is φ = 45735756.

The previous prime is 68603629. The next prime is 68603659. The reversal of 68603643 is 34630686.

68603643 is a `hidden beast` number, since 6 + 8 + 6 + 0 + 3 + 643 = 666.

It is not a de Polignac number, because 68603643 - 2⁸ = 68603387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68603598 and 68603607.

It is not an unprimeable number, because it can be changed into a prime (68603663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3811305 + ... + 3811322.

It is an arithmetic number, because the mean of its divisors is an integer number (16515694).

Almost surely, 2^68603643 is an apocalyptic number.

68603643 is a deficient number, since it is larger than the sum of its proper divisors (30490521).

68603643 is a wasteful number, since it uses less digits than its factorization.

68603643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7622633 (or 7622630 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 68603643 is about 8282.7316146305. The cubic root of 68603643 is about 409.3697296138.

The spelling of 68603643 in words is "sixty-eight million, six hundred three thousand, six hundred forty-three".