9040900079 has 2 divisors, whose sum is σ = 9040900080. Its totient is φ = 9040900078.

The previous prime is 9040900061. The next prime is 9040900103. The reversal of 9040900079 is 9700090409.

It is a weak prime.

It is an emirp because it is prime and its reverse (9700090409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9040900079 - 2³² = 4745932783 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9040900009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4520450039 + 4520450040.

It is an arithmetic number, because the mean of its divisors is an integer number (4520450040).

Almost surely, 2^9040900079 is an apocalyptic number.

9040900079 is a deficient number, since it is larger than the sum of its proper divisors (1).

9040900079 is an equidigital number, since it uses as much as digits as its factorization.

9040900079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 9040900079 is about 95083.6478002396. The cubic root of 9040900079 is about 2083.2300098318.

The spelling of 9040900079 in words is "nine billion, forty million, nine hundred thousand, seventy-nine".