67078361 has 4 divisors (see below), whose sum is σ = 76660992. Its totient is φ = 57495732.

The previous prime is 67078343. The next prime is 67078367. The reversal of 67078361 is 16387076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 67078361 - 2²² = 62884057 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67078367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4791305 + ... + 4791318.

It is an arithmetic number, because the mean of its divisors is an integer number (19165248).

Almost surely, 2^67078361 is an apocalyptic number.

It is an amenable number.

67078361 is a deficient number, since it is larger than the sum of its proper divisors (9582631).

67078361 is an equidigital number, since it uses as much as digits as its factorization.

67078361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9582630.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 67078361 is about 8190.1380330248. The cubic root of 67078361 is about 406.3130901307.

The spelling of 67078361 in words is "sixty-seven million, seventy-eight thousand, three hundred sixty-one".