2722639197 has 8 divisors (see below), whose sum is σ = 3634174080. Its totient is φ = 1813098560.

The previous prime is 2722639189. The next prime is 2722639211. The reversal of 2722639197 is 7919362272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2722639197 - 2³ = 2722639189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2722639187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495372 + ... + 500837.

It is an arithmetic number, because the mean of its divisors is an integer number (454271760).

Almost surely, 2^2722639197 is an apocalyptic number.

It is an amenable number.

2722639197 is a deficient number, since it is larger than the sum of its proper divisors (911534883).

2722639197 is an equidigital number, since it uses as much as digits as its factorization.

2722639197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997123.

The product of its digits is 571536, while the sum is 48.

The square root of 2722639197 is about 52178.9152531940. The cubic root of 2722639197 is about 1396.3577428507.

The spelling of 2722639197 in words is "two billion, seven hundred twenty-two million, six hundred thirty-nine thousand, one hundred ninety-seven".