9928537 has 2 divisors, whose sum is σ = 9928538. Its totient is φ = 9928536.

The previous prime is 9928487. The next prime is 9928547. The reversal of 9928537 is 7358299.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6702921 + 3225616 = 2589^2 + 1796^2 .

It is a cyclic number.

It is not a de Polignac number, because 9928537 - 2⁷ = 9928409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9928493 and 9928502.

It is not a weakly prime, because it can be changed into another prime (9928547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4964268 + 4964269.

It is an arithmetic number, because the mean of its divisors is an integer number (4964269).

Almost surely, 2^9928537 is an apocalyptic number.

It is an amenable number.

9928537 is a deficient number, since it is larger than the sum of its proper divisors (1).

9928537 is an equidigital number, since it uses as much as digits as its factorization.

9928537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 43.

The square root of 9928537 is about 3150.9581082585. The cubic root of 9928537 is about 214.9290337263.

The spelling of 9928537 in words is "nine million, nine hundred twenty-eight thousand, five hundred thirty-seven".