9427673509 has 2 divisors, whose sum is σ = 9427673510. Its totient is φ = 9427673508.

The previous prime is 9427673449. The next prime is 9427673513. The reversal of 9427673509 is 9053767249.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8597369284 + 830304225 = 92722^2 + 28815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9427673509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9427673599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4713836754 + 4713836755.

It is an arithmetic number, because the mean of its divisors is an integer number (4713836755).

Almost surely, 2^9427673509 is an apocalyptic number.

It is an amenable number.

9427673509 is a deficient number, since it is larger than the sum of its proper divisors (1).

9427673509 is an equidigital number, since it uses as much as digits as its factorization.

9427673509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2857680, while the sum is 52.

The square root of 9427673509 is about 97096.2074903031. The cubic root of 9427673509 is about 2112.5233177590.

The spelling of 9427673509 in words is "nine billion, four hundred twenty-seven million, six hundred seventy-three thousand, five hundred nine".