9623444401 has 2 divisors, whose sum is σ = 9623444402. Its totient is φ = 9623444400.

The previous prime is 9623444321. The next prime is 9623444423. The reversal of 9623444401 is 1044443269.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8386163776 + 1237280625 = 91576^2 + 35175^2 .

It is an emirp because it is prime and its reverse (1044443269) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9623444401 - 2¹³ = 9623436209 is a prime.

It is a super-2 number, since 2×9623444401² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9623442401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4811722200 + 4811722201.

It is an arithmetic number, because the mean of its divisors is an integer number (4811722201).

Almost surely, 2^9623444401 is an apocalyptic number.

It is an amenable number.

9623444401 is a deficient number, since it is larger than the sum of its proper divisors (1).

9623444401 is an equidigital number, since it uses as much as digits as its factorization.

9623444401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 9623444401 is about 98099.1559647686. The cubic root of 9623444401 is about 2127.0458286813.

It can be divided in two parts, 962344 and 4401, that added together give a triangular number (966745 = T₁₃₉₀).

The spelling of 9623444401 in words is "nine billion, six hundred twenty-three million, four hundred forty-four thousand, four hundred one".