678833383 has 4 divisors (see below), whose sum is σ = 679272048. Its totient is φ = 678394720.

The previous prime is 678833369. The next prime is 678833399. The reversal of 678833383 is 383338876.

It is a happy number.

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 678833383 - 2⁹ = 678832871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678833483) 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, 217003 + ... + 220108.

It is an arithmetic number, because the mean of its divisors is an integer number (169818012).

Almost surely, 2^678833383 is an apocalyptic number.

678833383 is a deficient number, since it is larger than the sum of its proper divisors (438665).

678833383 is a wasteful number, since it uses less digits than its factorization.

678833383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438664.

The product of its digits is 1741824, while the sum is 49.

The square root of 678833383 is about 26054.4311586340. The cubic root of 678833383 is about 878.8627626272.

The spelling of 678833383 in words is "six hundred seventy-eight million, eight hundred thirty-three thousand, three hundred eighty-three".