68781033 has 12 divisors (see below), whose sum is σ = 102555648. Its totient is φ = 44374680.

The previous prime is 68781029. The next prime is 68781043. The reversal of 68781033 is 33018786.

It is not a de Polignac number, because 68781033 - 2² = 68781029 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68781023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122985 + ... + 123542.

It is an arithmetic number, because the mean of its divisors is an integer number (8546304).

Almost surely, 2^68781033 is an apocalyptic number.

It is an amenable number.

68781033 is a deficient number, since it is larger than the sum of its proper divisors (33774615).

68781033 is a wasteful number, since it uses less digits than its factorization.

68781033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246564 (or 246561 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 68781033 is about 8293.4331250695. The cubic root of 68781033 is about 409.7222648089.

The spelling of 68781033 in words is "sixty-eight million, seven hundred eighty-one thousand, thirty-three".