623773 has 4 divisors (see below), whose sum is σ = 625468. Its totient is φ = 622080.

The previous prime is 623771. The next prime is 623803. The reversal of 623773 is 377326.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 375769 + 248004 = 613^2 + 498^2 .

It is a cyclic number.

It is not a de Polignac number, because 623773 - 2¹ = 623771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623771) 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, 36 + ... + 1117.

It is an arithmetic number, because the mean of its divisors is an integer number (156367).

2⁶²³⁷⁷³ is an apocalyptic number.

It is an amenable number.

623773 is a deficient number, since it is larger than the sum of its proper divisors (1695).

623773 is a wasteful number, since it uses less digits than its factorization.

623773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694.

The product of its digits is 5292, while the sum is 28.

The square root of 623773 is about 789.7930108579. The cubic root of 623773 is about 85.4428102669.

The spelling of 623773 in words is "six hundred twenty-three thousand, seven hundred seventy-three".