654994 has 16 divisors (see below), whose sum is σ = 1062720. Its totient is φ = 301840.

The previous prime is 654991. The next prime is 655001. The reversal of 654994 is 499456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1089 + ... + 1579.

It is an arithmetic number, because the mean of its divisors is an integer number (66420).

2⁶⁵⁴⁹⁹⁴ is an apocalyptic number.

654994 is a deficient number, since it is larger than the sum of its proper divisors (407726).

654994 is a wasteful number, since it uses less digits than its factorization.

654994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545.

The product of its digits is 38880, while the sum is 37.

The square root of 654994 is about 809.3169959911. The cubic root of 654994 is about 86.8451908494.

The spelling of 654994 in words is "six hundred fifty-four thousand, nine hundred ninety-four".