678323498 has 16 divisors (see below), whose sum is σ = 1062282816. Its totient is φ = 324244800.

The previous prime is 678323489. The next prime is 678323501. The reversal of 678323498 is 894323876.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150173 + ... + 154623.

It is an arithmetic number, because the mean of its divisors is an integer number (66392676).

Almost surely, 2^678323498 is an apocalyptic number.

678323498 is a deficient number, since it is larger than the sum of its proper divisors (383959318).

678323498 is a wasteful number, since it uses less digits than its factorization.

678323498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7789.

The product of its digits is 1741824, while the sum is 50.

The square root of 678323498 is about 26044.6443246975. The cubic root of 678323498 is about 878.6426638544.

The spelling of 678323498 in words is "six hundred seventy-eight million, three hundred twenty-three thousand, four hundred ninety-eight".