654402 has 16 divisors (see below), whose sum is σ = 1495872. Its totient is φ = 186960.

The previous prime is 654397. The next prime is 654413. The reversal of 654402 is 204456.

It is a happy number.

654402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

654402 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7749 + ... + 7832.

It is an arithmetic number, because the mean of its divisors is an integer number (93492).

2⁶⁵⁴⁴⁰² is an apocalyptic number.

654402 is an abundant number, since it is smaller than the sum of its proper divisors (841470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

654402 is a wasteful number, since it uses less digits than its factorization.

654402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15593.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 654402 is about 808.9511728158. The cubic root of 654402 is about 86.8190186758.

Adding to 654402 its reverse (204456), we get a palindrome (858858).

The spelling of 654402 in words is "six hundred fifty-four thousand, four hundred two".