67400733 has 16 divisors (see below), whose sum is σ = 100163520. Its totient is φ = 40064256.

The previous prime is 67400713. The next prime is 67400743. The reversal of 67400733 is 33700476.

It is not a de Polignac number, because 67400733 - 2¹⁶ = 67335197 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 67400733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67400713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33810 + ... + 35747.

It is an arithmetic number, because the mean of its divisors is an integer number (6260220).

Almost surely, 2^67400733 is an apocalyptic number.

It is an amenable number.

67400733 is a deficient number, since it is larger than the sum of its proper divisors (32762787).

67400733 is a wasteful number, since it uses less digits than its factorization.

67400733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69596.

The product of its (nonzero) digits is 10584, while the sum is 30.

The square root of 67400733 is about 8209.7949426280. The cubic root of 67400733 is about 406.9629504233.

The spelling of 67400733 in words is "sixty-seven million, four hundred thousand, seven hundred thirty-three".