9945629 has 4 divisors (see below), whose sum is σ = 10530684. Its totient is φ = 9360576.

The previous prime is 9945619. The next prime is 9945631. The reversal of 9945629 is 9265499.

9945629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9265499 = 131 ⋅70729.

It can be written as a sum of positive squares in 2 ways, for example, as 6240004 + 3705625 = 2498^2 + 1925^2 .

It is a cyclic number.

It is not a de Polignac number, because 9945629 - 2¹⁶ = 9880093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9945629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9945619) 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, 292502 + ... + 292535.

It is an arithmetic number, because the mean of its divisors is an integer number (2632671).

Almost surely, 2^9945629 is an apocalyptic number.

It is an amenable number.

9945629 is a deficient number, since it is larger than the sum of its proper divisors (585055).

9945629 is a wasteful number, since it uses less digits than its factorization.

9945629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585054.

The product of its digits is 174960, while the sum is 44.

The square root of 9945629 is about 3153.6691329307. The cubic root of 9945629 is about 215.0522966347.

The spelling of 9945629 in words is "nine million, nine hundred forty-five thousand, six hundred twenty-nine".