906974009 has 2 divisors, whose sum is σ = 906974010. Its totient is φ = 906974008.

The previous prime is 906973999. The next prime is 906974011. The reversal of 906974009 is 900479609.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 884884009 + 22090000 = 29747^2 + 4700^2 .

It is a cyclic number.

It is not a de Polignac number, because 906974009 - 2¹² = 906969913 is a prime.

Together with 906974011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (906974039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 453487004 + 453487005.

It is an arithmetic number, because the mean of its divisors is an integer number (453487005).

Almost surely, 2^906974009 is an apocalyptic number.

It is an amenable number.

906974009 is a deficient number, since it is larger than the sum of its proper divisors (1).

906974009 is an equidigital number, since it uses as much as digits as its factorization.

906974009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 906974009 is about 30116.0091811648. The cubic root of 906974009 is about 967.9767972633.

The spelling of 906974009 in words is "nine hundred six million, nine hundred seventy-four thousand, nine".