623201269 has 2 divisors, whose sum is σ = 623201270. Its totient is φ = 623201268.

The previous prime is 623201239. The next prime is 623201309. The reversal of 623201269 is 962102326.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 616926244 + 6275025 = 24838^2 + 2505^2 .

It is a cyclic number.

It is not a de Polignac number, because 623201269 - 2⁷ = 623201141 is a prime.

It is a super-2 number, since 2×623201269² = 776759643366420722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 623201269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623201239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311600634 + 311600635.

It is an arithmetic number, because the mean of its divisors is an integer number (311600635).

Almost surely, 2^623201269 is an apocalyptic number.

It is an amenable number.

623201269 is a deficient number, since it is larger than the sum of its proper divisors (1).

623201269 is an equidigital number, since it uses as much as digits as its factorization.

623201269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 623201269 is about 24963.9994592213. Note that the first 3 decimals coincide. The cubic root of 623201269 is about 854.1669754330.

The spelling of 623201269 in words is "six hundred twenty-three million, two hundred one thousand, two hundred sixty-nine".