623694 has 16 divisors (see below), whose sum is σ = 1313280. Its totient is φ = 196920.

The previous prime is 623683. The next prime is 623699. The reversal of 623694 is 496326.

It is a d-powerful number, because it can be written as 6³ + 2¹⁵ + 6³ + 3¹² + 9⁵ + 4 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623699) by changing a digit.

623694 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2622 + ... + 2849.

It is an arithmetic number, because the mean of its divisors is an integer number (82080).

2⁶²³⁶⁹⁴ is an apocalyptic number.

623694 is an abundant number, since it is smaller than the sum of its proper divisors (689586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

623694 is a wasteful number, since it uses less digits than its factorization.

623694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5495.

The product of its digits is 7776, while the sum is 30.

The square root of 623694 is about 789.7429961703. The cubic root of 623694 is about 85.4392030428.

The spelling of 623694 in words is "six hundred twenty-three thousand, six hundred ninety-four".