654502 has 4 divisors (see below), whose sum is σ = 981756. Its totient is φ = 327250.

The previous prime is 654499. The next prime is 654509. The reversal of 654502 is 205456.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163624 + ... + 163627.

It is an arithmetic number, because the mean of its divisors is an integer number (245439).

2⁶⁵⁴⁵⁰² is an apocalyptic number.

654502 is a deficient number, since it is larger than the sum of its proper divisors (327254).

654502 is a wasteful number, since it uses less digits than its factorization.

654502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327253.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 654502 is about 809.0129788823. The cubic root of 654502 is about 86.8234407587.

Adding to 654502 its reverse (205456), we get a palindrome (859958).

It can be divided in two parts, 654 and 502, that added together give a square (1156 = 34²).

The spelling of 654502 in words is "six hundred fifty-four thousand, five hundred two".