623197 has 4 divisors (see below), whose sum is σ = 626620. Its totient is φ = 619776.

The previous prime is 623171. The next prime is 623209. The reversal of 623197 is 791326.

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 168921 + 454276 = 411^2 + 674^2 .

It is a cyclic number.

It is not a de Polignac number, because 623197 - 2¹⁹ = 98909 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 (623107) 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, 1422 + ... + 1807.

It is an arithmetic number, because the mean of its divisors is an integer number (156655).

2⁶²³¹⁹⁷ is an apocalyptic number.

It is an amenable number.

623197 is a deficient number, since it is larger than the sum of its proper divisors (3423).

623197 is a wasteful number, since it uses less digits than its factorization.

623197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3422.

The product of its digits is 2268, while the sum is 28.

The square root of 623197 is about 789.4282741326. The cubic root of 623197 is about 85.4165025048.

It can be divided in two parts, 62319 and 7, that added together give a palindrome (62326).

The spelling of 623197 in words is "six hundred twenty-three thousand, one hundred ninety-seven".