67374427 has 4 divisors (see below), whose sum is σ = 67392280. Its totient is φ = 67356576.

The previous prime is 67374413. The next prime is 67374431. The reversal of 67374427 is 72447376.

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

It is a cyclic number.

It is not a de Polignac number, because 67374427 - 2¹⁹ = 66850139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67374427.

It is not an unprimeable number, because it can be changed into a prime (67374407) 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, 798 + ... + 11635.

It is an arithmetic number, because the mean of its divisors is an integer number (16848070).

Almost surely, 2^67374427 is an apocalyptic number.

67374427 is a deficient number, since it is larger than the sum of its proper divisors (17853).

67374427 is a wasteful number, since it uses less digits than its factorization.

67374427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17852.

The product of its digits is 197568, while the sum is 40.

The square root of 67374427 is about 8208.1926756138. The cubic root of 67374427 is about 406.9099986726.

The spelling of 67374427 in words is "sixty-seven million, three hundred seventy-four thousand, four hundred twenty-seven".