623956205 has 6 divisors (see below), whose sum is σ = 748814478. Its totient is φ = 499120280.

The previous prime is 623956171. The next prime is 623956241. The reversal of 623956205 is 502659326.

It can be written as a sum of positive squares in only one way, i.e., 499164964 + 124791241 = 22342^2 + 11171^2 .

It is not a de Polignac number, because 623956205 - 2¹⁰ = 623955181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50270 + ... + 61440.

It is an arithmetic number, because the mean of its divisors is an integer number (124802413).

Almost surely, 2^623956205 is an apocalyptic number.

It is an amenable number.

623956205 is a deficient number, since it is larger than the sum of its proper divisors (124858273).

623956205 is an frugal number, since it uses more digits than its factorization.

623956205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22347 (or 11176 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 623956205 is about 24979.1153766502. The cubic root of 623956205 is about 854.5117443027.

The spelling of 623956205 in words is "six hundred twenty-three million, nine hundred fifty-six thousand, two hundred five".