928064509 has 2 divisors, whose sum is σ = 928064510. Its totient is φ = 928064508.

The previous prime is 928064471. The next prime is 928064521. The reversal of 928064509 is 905460829.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 682358884 + 245705625 = 26122^2 + 15675^2 .

It is a cyclic number.

It is not a de Polignac number, because 928064509 - 2⁷ = 928064381 is a prime.

It is a super-2 number, since 2×928064509² = 1722607465730822162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (928064909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 464032254 + 464032255.

It is an arithmetic number, because the mean of its divisors is an integer number (464032255).

Almost surely, 2^928064509 is an apocalyptic number.

It is an amenable number.

928064509 is a deficient number, since it is larger than the sum of its proper divisors (1).

928064509 is an equidigital number, since it uses as much as digits as its factorization.

928064509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 928064509 is about 30464.1512108905. The cubic root of 928064509 is about 975.4223930075.

The spelling of 928064509 in words is "nine hundred twenty-eight million, sixty-four thousand, five hundred nine".