655994 has 16 divisors (see below), whose sum is σ = 1056480. Its totient is φ = 304560.

The previous prime is 655987. The next prime is 656023. The reversal of 655994 is 499556.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2177 + ... + 2459.

It is an arithmetic number, because the mean of its divisors is an integer number (66030).

2⁶⁵⁵⁹⁹⁴ is an apocalyptic number.

655994 is a deficient number, since it is larger than the sum of its proper divisors (400486).

655994 is a wasteful number, since it uses less digits than its factorization.

655994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365.

The product of its digits is 48600, while the sum is 38.

The square root of 655994 is about 809.9345652582. The cubic root of 655994 is about 86.8893648072.

The spelling of 655994 in words is "six hundred fifty-five thousand, nine hundred ninety-four".