653401 has 8 divisors (see below), whose sum is σ = 751680. Its totient is φ = 556368.

The previous prime is 653363. The next prime is 653431. The reversal of 653401 is 104356.

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

It is a cyclic number.

It is not a de Polignac number, because 653401 - 2⁷ = 653273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653431) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1710 + ... + 2056.

It is an arithmetic number, because the mean of its divisors is an integer number (93960).

2⁶⁵³⁴⁰¹ is an apocalyptic number.

It is an amenable number.

653401 is a deficient number, since it is larger than the sum of its proper divisors (98279).

653401 is a wasteful number, since it uses less digits than its factorization.

653401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 653401 is about 808.3322336762. The cubic root of 653401 is about 86.7747287811.

Adding to 653401 its reverse (104356), we get a palindrome (757757).

It can be divided in two parts, 65340 and 1, that added together give a triangular number (65341 = T₃₆₁).

The spelling of 653401 in words is "six hundred fifty-three thousand, four hundred one".