945236729 has 4 divisors (see below), whose sum is σ = 948315984. Its totient is φ = 942157476.

The previous prime is 945236713. The next prime is 945236731. The reversal of 945236729 is 927632549.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 927632549 = 227 ⋅4086487.

It is a cyclic number.

It is not a de Polignac number, because 945236729 - 2⁴ = 945236713 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (945236029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1539167 + ... + 1539780.

It is an arithmetic number, because the mean of its divisors is an integer number (237078996).

Almost surely, 2^945236729 is an apocalyptic number.

It is an amenable number.

945236729 is a deficient number, since it is larger than the sum of its proper divisors (3079255).

945236729 is a wasteful number, since it uses less digits than its factorization.

945236729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3079254.

The product of its digits is 816480, while the sum is 47.

The square root of 945236729 is about 30744.7024542440. The cubic root of 945236729 is about 981.4018286762.

The spelling of 945236729 in words is "nine hundred forty-five million, two hundred thirty-six thousand, seven hundred twenty-nine".