9728237011 has 2 divisors, whose sum is σ = 9728237012. Its totient is φ = 9728237010.

The previous prime is 9728236997. The next prime is 9728237027. The reversal of 9728237011 is 1107328279.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9728237011 - 2⁵ = 9728236979 is a prime.

It is not a weakly prime, because it can be changed into another prime (9728237111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4864118505 + 4864118506.

It is an arithmetic number, because the mean of its divisors is an integer number (4864118506).

Almost surely, 2^9728237011 is an apocalyptic number.

9728237011 is a deficient number, since it is larger than the sum of its proper divisors (1).

9728237011 is an equidigital number, since it uses as much as digits as its factorization.

9728237011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 9728237011 is about 98631.8255483493. The cubic root of 9728237011 is about 2134.7386554745.

The spelling of 9728237011 in words is "nine billion, seven hundred twenty-eight million, two hundred thirty-seven thousand, eleven".