68091033 has 4 divisors (see below), whose sum is σ = 90788048. Its totient is φ = 45394020.

The previous prime is 68091019. The next prime is 68091071. The reversal of 68091033 is 33019086.

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 not a de Polignac number, because 68091033 - 2¹⁴ = 68074649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68091013) 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, 11348503 + ... + 11348508.

It is an arithmetic number, because the mean of its divisors is an integer number (22697012).

Almost surely, 2^68091033 is an apocalyptic number.

It is an amenable number.

68091033 is a deficient number, since it is larger than the sum of its proper divisors (22697015).

68091033 is a wasteful number, since it uses less digits than its factorization.

68091033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22697014.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 68091033 is about 8251.7290915298. The cubic root of 68091033 is about 408.3475688313.

The spelling of 68091033 in words is "sixty-eight million, ninety-one thousand, thirty-three".