654263 has 4 divisors (see below), whose sum is σ = 656208. Its totient is φ = 652320.

The previous prime is 654257. The next prime is 654293. The reversal of 654263 is 362456.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654223) 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, 323 + ... + 1188.

It is an arithmetic number, because the mean of its divisors is an integer number (164052).

2⁶⁵⁴²⁶³ is an apocalyptic number.

654263 is a deficient number, since it is larger than the sum of its proper divisors (1945).

654263 is a wasteful number, since it uses less digits than its factorization.

654263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944.

The product of its digits is 4320, while the sum is 26.

The square root of 654263 is about 808.8652545387. The cubic root of 654263 is about 86.8128712322.

The spelling of 654263 in words is "six hundred fifty-four thousand, two hundred sixty-three".