623497678 has 16 divisors (see below), whose sum is σ = 1013292720. Its totient is φ = 286586496.

The previous prime is 623497669. The next prime is 623497681. The reversal of 623497678 is 876794326.

623497678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 211773 + ... + 214696.

It is an arithmetic number, because the mean of its divisors is an integer number (63330795).

Almost surely, 2^623497678 is an apocalyptic number.

623497678 is a deficient number, since it is larger than the sum of its proper divisors (389795042).

623497678 is a wasteful number, since it uses less digits than its factorization.

623497678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426531.

The product of its digits is 3048192, while the sum is 52.

The square root of 623497678 is about 24969.9354824957. The cubic root of 623497678 is about 854.3023745207.

The spelling of 623497678 in words is "six hundred twenty-three million, four hundred ninety-seven thousand, six hundred seventy-eight".