2973897909 has 18 divisors (see below), whose sum is σ = 4460630070. Its totient is φ = 1982594232.

The previous prime is 2973897869. The next prime is 2973897919. The reversal of 2973897909 is 9097983792.

It can be written as a sum of positive squares in only one way, i.e., 2670615684 + 303282225 = 51678^2 + 17415^2 .

It is not a de Polignac number, because 2973897909 - 2²¹ = 2971800757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2973897919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 220074 + ... + 233195.

Almost surely, 2^2973897909 is an apocalyptic number.

It is an amenable number.

2973897909 is a deficient number, since it is larger than the sum of its proper divisors (1486732161).

2973897909 is an frugal number, since it uses more digits than its factorization.

2973897909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453293 (or 453272 counting only the distinct ones).

The product of its (nonzero) digits is 15431472, while the sum is 63.

The square root of 2973897909 is about 54533.4567857201. The cubic root of 2973897909 is about 1438.0545212270.

The spelling of 2973897909 in words is "two billion, nine hundred seventy-three million, eight hundred ninety-seven thousand, nine hundred nine".