67542933 has 4 divisors (see below), whose sum is σ = 90057248. Its totient is φ = 45028620.

The previous prime is 67542911. The next prime is 67542947. The reversal of 67542933 is 33924576.

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 67542933 - 2⁶ = 67542869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67542891 and 67542900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67542133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11257153 + ... + 11257158.

It is an arithmetic number, because the mean of its divisors is an integer number (22514312).

Almost surely, 2^67542933 is an apocalyptic number.

It is an amenable number.

67542933 is a deficient number, since it is larger than the sum of its proper divisors (22514315).

67542933 is a wasteful number, since it uses less digits than its factorization.

67542933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22514314.

The product of its digits is 136080, while the sum is 39.

The square root of 67542933 is about 8218.4507664158. The cubic root of 67542933 is about 407.2489487059.

The spelling of 67542933 in words is "sixty-seven million, five hundred forty-two thousand, nine hundred thirty-three".