67404233 has 8 divisors (see below), whose sum is σ = 73338888. Its totient is φ = 61576704.

The previous prime is 67404221. The next prime is 67404247. The reversal of 67404233 is 33240476.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3356224 + 64048009 = 1832^2 + 8003^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67404233 - 2¹⁰ = 67403209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 67404196 and 67404205.

It is not an unprimeable number, because it can be changed into a prime (67404833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25466 + ... + 27987.

It is an arithmetic number, because the mean of its divisors is an integer number (9167361).

Almost surely, 2^67404233 is an apocalyptic number.

It is an amenable number.

67404233 is a deficient number, since it is larger than the sum of its proper divisors (5934655).

67404233 is a wasteful number, since it uses less digits than its factorization.

67404233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53563.

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 67404233 is about 8210.0080998742. The cubic root of 67404233 is about 406.9699945884.

The spelling of 67404233 in words is "sixty-seven million, four hundred four thousand, two hundred thirty-three".