678583407 has 16 divisors (see below), whose sum is σ = 966961152. Its totient is φ = 421795200.

The previous prime is 678583403. The next prime is 678583417. The reversal of 678583407 is 704385876.

It is not a de Polignac number, because 678583407 - 2² = 678583403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678583403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56719 + ... + 67632.

It is an arithmetic number, because the mean of its divisors is an integer number (60435072).

Almost surely, 2^678583407 is an apocalyptic number.

678583407 is a deficient number, since it is larger than the sum of its proper divisors (288377745).

678583407 is a wasteful number, since it uses less digits than its factorization.

678583407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124478.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 678583407 is about 26049.6335290921. The cubic root of 678583407 is about 878.7548708744.

The spelling of 678583407 in words is "six hundred seventy-eight million, five hundred eighty-three thousand, four hundred seven".