659493478 has 32 divisors (see below), whose sum is σ = 1198568448. Its totient is φ = 265680000.

The previous prime is 659493463. The next prime is 659493481. The reversal of 659493478 is 874394956.

659493478 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 15 ways as a sum of consecutive naturals, for example, 291853 + ... + 294103.

It is an arithmetic number, because the mean of its divisors is an integer number (37455264).

Almost surely, 2^659493478 is an apocalyptic number.

659493478 is a deficient number, since it is larger than the sum of its proper divisors (539074970).

659493478 is a wasteful number, since it uses less digits than its factorization.

659493478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3508.

The product of its digits is 6531840, while the sum is 55.

The square root of 659493478 is about 25680.6050941172. The cubic root of 659493478 is about 870.4359808914.

The spelling of 659493478 in words is "six hundred fifty-nine million, four hundred ninety-three thousand, four hundred seventy-eight".