2209707057 has 4 divisors (see below), whose sum is σ = 2946276080. Its totient is φ = 1473138036.

The previous prime is 2209707053. The next prime is 2209707061. The reversal of 2209707057 is 7507079022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2209707053) and next prime (2209707061).

It is not a de Polignac number, because 2209707057 - 2² = 2209707053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2209707053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368284507 + ... + 368284512.

It is an arithmetic number, because the mean of its divisors is an integer number (736569020).

Almost surely, 2^2209707057 is an apocalyptic number.

It is an amenable number.

2209707057 is a deficient number, since it is larger than the sum of its proper divisors (736569023).

2209707057 is an equidigital number, since it uses as much as digits as its factorization.

2209707057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736569022.

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 2209707057 is about 47007.5212811737. The cubic root of 2209707057 is about 1302.5015063047.

The spelling of 2209707057 in words is "two billion, two hundred nine million, seven hundred seven thousand, fifty-seven".