653399 has 4 divisors (see below), whose sum is σ = 675960. Its totient is φ = 630840.

The previous prime is 653363. The next prime is 653431. The reversal of 653399 is 993356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 653399 - 2⁸ = 653143 is a prime.

It is a d-powerful number, because it can be written as 6 + 5⁵ + 3¹⁰ + 3¹² + 9³ + 9⁵ .

It is a Duffinian number.

It is a zygodrome in base 6.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 653399.

It is not an unprimeable number, because it can be changed into a prime (653339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11237 + ... + 11294.

It is an arithmetic number, because the mean of its divisors is an integer number (168990).

2⁶⁵³³⁹⁹ is an apocalyptic number.

653399 is a deficient number, since it is larger than the sum of its proper divisors (22561).

653399 is a wasteful number, since it uses less digits than its factorization.

653399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22560.

The product of its digits is 21870, while the sum is 35.

The square root of 653399 is about 808.3309965602. The cubic root of 653399 is about 86.7746402446.

The spelling of 653399 in words is "six hundred fifty-three thousand, three hundred ninety-nine".