67940775 has 60 divisors (see below), whose sum is σ = 143858352. Its totient is φ = 31052160.

The previous prime is 67940773. The next prime is 67940791. The reversal of 67940775 is 57704976.

It is not a de Polignac number, because 67940775 - 2¹ = 67940773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 67940775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67940773) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 11779 + ... + 16571.

Almost surely, 2^67940775 is an apocalyptic number.

67940775 is an abundant number, since it is smaller than the sum of its proper divisors (75917577).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67940775 is a wasteful number, since it uses less digits than its factorization.

67940775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4822 (or 4808 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 67940775 is about 8242.6194258864. The cubic root of 67940775 is about 408.0469777222.

The spelling of 67940775 in words is "sixty-seven million, nine hundred forty thousand, seven hundred seventy-five".