2196977709 has 4 divisors (see below), whose sum is σ = 2929303616. Its totient is φ = 1464651804.

The previous prime is 2196977669. The next prime is 2196977723. The reversal of 2196977709 is 9077796912.

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 not a de Polignac number, because 2196977709 - 2¹⁷ = 2196846637 is a prime.

It is a super-2 number, since 2×2196977709² = 9653422107685777362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196977789) 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, 366162949 + ... + 366162954.

It is an arithmetic number, because the mean of its divisors is an integer number (732325904).

Almost surely, 2^2196977709 is an apocalyptic number.

It is an amenable number.

2196977709 is a deficient number, since it is larger than the sum of its proper divisors (732325907).

2196977709 is an equidigital number, since it uses as much as digits as its factorization.

2196977709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732325906.

The product of its (nonzero) digits is 3000564, while the sum is 57.

The square root of 2196977709 is about 46871.9287953888. The cubic root of 2196977709 is about 1299.9956033382.

The spelling of 2196977709 in words is "two billion, one hundred ninety-six million, nine hundred seventy-seven thousand, seven hundred nine".