654689938 has 16 divisors (see below), whose sum is σ = 1124928000. Its totient is φ = 279930816.

The previous prime is 654689869. The next prime is 654689969. The reversal of 654689938 is 839986456.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47938 + ... + 60061.

It is an arithmetic number, because the mean of its divisors is an integer number (70308000).

Almost surely, 2^654689938 is an apocalyptic number.

654689938 is a deficient number, since it is larger than the sum of its proper divisors (470238062).

654689938 is a wasteful number, since it uses less digits than its factorization.

654689938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108441.

The product of its digits is 11197440, while the sum is 58.

The square root of 654689938 is about 25586.9095046666. The cubic root of 654689938 is about 868.3175031427.

The spelling of 654689938 in words is "six hundred fifty-four million, six hundred eighty-nine thousand, nine hundred thirty-eight".