2897719253 has 12 divisors (see below), whose sum is σ = 3430105644. Its totient is φ = 2431651200.

The previous prime is 2897719243. The next prime is 2897719259. The reversal of 2897719253 is 3529177982.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1331301169 + 1566418084 = 36487^2 + 39578^2 .

It is not a de Polignac number, because 2897719253 - 2¹² = 2897715157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2897719195 and 2897719204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897719259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 919508 + ... + 922653.

It is an arithmetic number, because the mean of its divisors is an integer number (285842137).

Almost surely, 2^2897719253 is an apocalyptic number.

It is an amenable number.

2897719253 is a deficient number, since it is larger than the sum of its proper divisors (532386391).

2897719253 is a wasteful number, since it uses less digits than its factorization.

2897719253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842196 (or 1842185 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 53.

The square root of 2897719253 is about 53830.4677018508. The cubic root of 2897719253 is about 1425.6692049992.

The spelling of 2897719253 in words is "two billion, eight hundred ninety-seven million, seven hundred nineteen thousand, two hundred fifty-three".