9428557723 has 16 divisors (see below), whose sum is σ = 10283245056. Its totient is φ = 8592504480.

The previous prime is 9428557711. The next prime is 9428557727. The reversal of 9428557723 is 3277558249.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9428557723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9428557727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2638528 + ... + 2642098.

It is an arithmetic number, because the mean of its divisors is an integer number (642702816).

Almost surely, 2^9428557723 is an apocalyptic number.

9428557723 is a deficient number, since it is larger than the sum of its proper divisors (854687333).

9428557723 is a wasteful number, since it uses less digits than its factorization.

9428557723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6114.

The product of its digits is 4233600, while the sum is 52.

The square root of 9428557723 is about 97100.7606715828. The cubic root of 9428557723 is about 2112.5893596550.

The spelling of 9428557723 in words is "nine billion, four hundred twenty-eight million, five hundred fifty-seven thousand, seven hundred twenty-three".