678231467 has 4 divisors (see below), whose sum is σ = 713927880. Its totient is φ = 642535056.

The previous prime is 678231451. The next prime is 678231493. The reversal of 678231467 is 764132876.

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 678231467 - 2⁴ = 678231451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (678231767) 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, 17848178 + ... + 17848215.

It is an arithmetic number, because the mean of its divisors is an integer number (178481970).

Almost surely, 2^678231467 is an apocalyptic number.

678231467 is a deficient number, since it is larger than the sum of its proper divisors (35696413).

678231467 is a wasteful number, since it uses less digits than its factorization.

678231467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35696412.

The product of its digits is 338688, while the sum is 44.

The square root of 678231467 is about 26042.8774715852. The cubic root of 678231467 is about 878.6029256762.

The spelling of 678231467 in words is "six hundred seventy-eight million, two hundred thirty-one thousand, four hundred sixty-seven".