67433081 has 4 divisors (see below), whose sum is σ = 67481700. Its totient is φ = 67384464.

The previous prime is 67433053. The next prime is 67433083. The reversal of 67433081 is 18033476.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39438400 + 27994681 = 6280^2 + 5291^2 .

It is a cyclic number.

It is not a de Polignac number, because 67433081 - 2²⁶ = 324217 is a prime.

It is a super-3 number, since 3×67433081³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67433083) 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, 22166 + ... + 25023.

It is an arithmetic number, because the mean of its divisors is an integer number (16870425).

Almost surely, 2^67433081 is an apocalyptic number.

It is an amenable number.

67433081 is a deficient number, since it is larger than the sum of its proper divisors (48619).

67433081 is a wasteful number, since it uses less digits than its factorization.

67433081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48618.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 67433081 is about 8211.7647920529. The cubic root of 67433081 is about 407.0280453240.

The spelling of 67433081 in words is "sixty-seven million, four hundred thirty-three thousand, eighty-one".