68245633 has 4 divisors (see below), whose sum is σ = 72260100. Its totient is φ = 64231168.

The previous prime is 68245631. The next prime is 68245643. The reversal of 68245633 is 33654286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33654286 = 2 ⋅16827143.

It can be written as a sum of positive squares in 2 ways, for example, as 43125489 + 25120144 = 6567^2 + 5012^2 .

It is not a de Polignac number, because 68245633 - 2¹ = 68245631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68245592 and 68245601.

It is not an unprimeable number, because it can be changed into a prime (68245631) 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, 2007208 + ... + 2007241.

It is an arithmetic number, because the mean of its divisors is an integer number (18065025).

Almost surely, 2^68245633 is an apocalyptic number.

It is an amenable number.

68245633 is a deficient number, since it is larger than the sum of its proper divisors (4014467).

68245633 is a wasteful number, since it uses less digits than its factorization.

68245633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014466.

The product of its digits is 103680, while the sum is 37.

The square root of 68245633 is about 8261.0915138376. The cubic root of 68245633 is about 408.6563848993.

The spelling of 68245633 in words is "sixty-eight million, two hundred forty-five thousand, six hundred thirty-three".