67378379 has 2 divisors, whose sum is σ = 67378380. Its totient is φ = 67378378.

The previous prime is 67378373. The next prime is 67378391. The reversal of 67378379 is 97387376.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67378379 is a prime.

It is not a weakly prime, because it can be changed into another prime (67378373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33689189 + 33689190.

It is an arithmetic number, because the mean of its divisors is an integer number (33689190).

Almost surely, 2^67378379 is an apocalyptic number.

67378379 is a deficient number, since it is larger than the sum of its proper divisors (1).

67378379 is an equidigital number, since it uses as much as digits as its factorization.

67378379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1333584, while the sum is 50.

The square root of 67378379 is about 8208.4334071734. The cubic root of 67378379 is about 406.9179545937.

The spelling of 67378379 in words is "sixty-seven million, three hundred seventy-eight thousand, three hundred seventy-nine".