511994 has 8 divisors (see below), whose sum is σ = 877728. Its totient is φ = 219420.

The previous prime is 511991. The next prime is 511997. The reversal of 511994 is 499115.

It is an interprime number because it is at equal distance from previous prime (511991) and next prime (511997).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (511991) 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, 18272 + ... + 18299.

It is an arithmetic number, because the mean of its divisors is an integer number (109716).

2⁵¹¹⁹⁹⁴ is an apocalyptic number.

511994 is a deficient number, since it is larger than the sum of its proper divisors (365734).

511994 is a wasteful number, since it uses less digits than its factorization.

511994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36580.

The product of its digits is 1620, while the sum is 29.

The square root of 511994 is about 715.5375601602. The cubic root of 511994 is about 79.9996874988. Note that the first 3 decimals are identical.

The spelling of 511994 in words is "five hundred eleven thousand, nine hundred ninety-four".