653398 has 8 divisors (see below), whose sum is σ = 983808. Its totient is φ = 325464.

The previous prime is 653363. The next prime is 653431. The reversal of 653398 is 893356.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340 + ... + 1192.

It is an arithmetic number, because the mean of its divisors is an integer number (122976).

2⁶⁵³³⁹⁸ is an apocalyptic number.

653398 is a deficient number, since it is larger than the sum of its proper divisors (330410).

653398 is a wasteful number, since it uses less digits than its factorization.

653398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238.

The product of its digits is 19440, while the sum is 34.

The square root of 653398 is about 808.3303780015. The cubic root of 653398 is about 86.7745959762.

The spelling of 653398 in words is "six hundred fifty-three thousand, three hundred ninety-eight".