694143 has 16 divisors (see below), whose sum is σ = 1052160. Its totient is φ = 452088.

The previous prime is 694123. The next prime is 694189. The reversal of 694143 is 341496.

It is not a de Polignac number, because 694143 - 2⁶ = 694079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

694143 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 694143.

It is not an unprimeable number, because it can be changed into a prime (694123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 996 + ... + 1542.

It is an arithmetic number, because the mean of its divisors is an integer number (65760).

2⁶⁹⁴¹⁴³ is an apocalyptic number.

694143 is a deficient number, since it is larger than the sum of its proper divisors (358017).

694143 is a wasteful number, since it uses less digits than its factorization.

694143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 597 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 694143 is about 833.1524470348. The cubic root of 694143 is about 88.5420656099.

It can be divided in two parts, 6 and 94143, that added together give a palindrome (94149).

The spelling of 694143 in words is "six hundred ninety-four thousand, one hundred forty-three".