67404379 has 4 divisors (see below), whose sum is σ = 77033584. Its totient is φ = 57775176.

The previous prime is 67404377. The next prime is 67404391. The reversal of 67404379 is 97340476.

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 67404379 - 2¹ = 67404377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67404377) 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, 4814592 + ... + 4814605.

It is an arithmetic number, because the mean of its divisors is an integer number (19258396).

Almost surely, 2^67404379 is an apocalyptic number.

67404379 is a deficient number, since it is larger than the sum of its proper divisors (9629205).

67404379 is an equidigital number, since it uses as much as digits as its factorization.

67404379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9629204.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 67404379 is about 8210.0169914562. The cubic root of 67404379 is about 406.9702884254.

The spelling of 67404379 in words is "sixty-seven million, four hundred four thousand, three hundred seventy-nine".