9370820809 has 9 divisors (see below), whose sum is σ = 10901539047. Its totient is φ = 8031551304.

The previous prime is 9370820791. The next prime is 9370820819. The reversal of 9370820809 is 9080280739.

The square root of 9370820809 is 96803.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1417748409 + 7953072400 = 37653^2 + 89180^2 .

It is not a de Polignac number, because 9370820809 - 2²¹ = 9368723657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9370820819) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 670707 + ... + 684535.

Almost surely, 2^9370820809 is an apocalyptic number.

9370820809 is the 96803-rd square number.

9370820809 is the 48402-nd centered octagonal number.

It is an amenable number.

9370820809 is a deficient number, since it is larger than the sum of its proper divisors (1530718238).

9370820809 is an frugal number, since it uses more digits than its factorization.

9370820809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27672 (or 13836 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The cubic root of 9370820809 is about 2108.2682952450.

The spelling of 9370820809 in words is "nine billion, three hundred seventy million, eight hundred twenty thousand, eight hundred nine".