654461 has 4 divisors (see below), whose sum is σ = 656124. Its totient is φ = 652800.

The previous prime is 654439. The next prime is 654491. The reversal of 654461 is 164456.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 498436 + 156025 = 706^2 + 395^2 .

It is a cyclic number.

It is not a de Polignac number, because 654461 - 2⁶ = 654397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 654461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654421) 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, 131 + ... + 1151.

It is an arithmetic number, because the mean of its divisors is an integer number (164031).

2⁶⁵⁴⁴⁶¹ is an apocalyptic number.

It is an amenable number.

654461 is a deficient number, since it is larger than the sum of its proper divisors (1663).

654461 is a wasteful number, since it uses less digits than its factorization.

654461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662.

The product of its digits is 2880, while the sum is 26.

The square root of 654461 is about 808.9876389661. The cubic root of 654461 is about 86.8216277592.

The spelling of 654461 in words is "six hundred fifty-four thousand, four hundred sixty-one".