654929 has 4 divisors (see below), whose sum is σ = 714480. Its totient is φ = 595380.

The previous prime is 654923. The next prime is 654931. The reversal of 654929 is 929456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 654929 - 2¹² = 650833 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654923) 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, 29759 + ... + 29780.

It is an arithmetic number, because the mean of its divisors is an integer number (178620).

2⁶⁵⁴⁹²⁹ is an apocalyptic number.

It is an amenable number.

654929 is a deficient number, since it is larger than the sum of its proper divisors (59551).

654929 is a wasteful number, since it uses less digits than its factorization.

654929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59550.

The product of its digits is 19440, while the sum is 35.

The square root of 654929 is about 809.2768376767. The cubic root of 654929 is about 86.8423179864.

It can be divided in two parts, 65 and 4929, that added together give a palindrome (4994).

The spelling of 654929 in words is "six hundred fifty-four thousand, nine hundred twenty-nine".