67428633 has 8 divisors (see below), whose sum is σ = 91043200. Its totient is φ = 44383248.

The previous prime is 67428611. The next prime is 67428643. The reversal of 67428633 is 33682476.

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

It is not a de Polignac number, because 67428633 - 2⁸ = 67428377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67428591 and 67428600.

It is not an unprimeable number, because it can be changed into a prime (67428643) 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, 142018 + ... + 142491.

It is an arithmetic number, because the mean of its divisors is an integer number (11380400).

Almost surely, 2^67428633 is an apocalyptic number.

It is an amenable number.

67428633 is a deficient number, since it is larger than the sum of its proper divisors (23614567).

67428633 is a wasteful number, since it uses less digits than its factorization.

67428633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284591.

The product of its digits is 145152, while the sum is 39.

The square root of 67428633 is about 8211.4939566439. The cubic root of 67428633 is about 407.0190957079.

The spelling of 67428633 in words is "sixty-seven million, four hundred twenty-eight thousand, six hundred thirty-three".