654398 has 16 divisors (see below), whose sum is σ = 1095120. Its totient is φ = 291456.

The previous prime is 654397. The next prime is 654413. The reversal of 654398 is 893456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654397) by changing a digit.

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, 140 + ... + 1152.

It is an arithmetic number, because the mean of its divisors is an integer number (68445).

2⁶⁵⁴³⁹⁸ is an apocalyptic number.

654398 is a deficient number, since it is larger than the sum of its proper divisors (440722).

654398 is a wasteful number, since it uses less digits than its factorization.

654398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051.

The product of its digits is 25920, while the sum is 35.

The square root of 654398 is about 808.9487004749. The cubic root of 654398 is about 86.8188417831.

The spelling of 654398 in words is "six hundred fifty-four thousand, three hundred ninety-eight".