2897524781 has 2 divisors, whose sum is σ = 2897524782. Its totient is φ = 2897524780.

The previous prime is 2897524769. The next prime is 2897524789. The reversal of 2897524781 is 1874257982.

2897524781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2889062500 + 8462281 = 53750^2 + 2909^2 .

It is a cyclic number.

It is not a de Polignac number, because 2897524781 - 2⁶ = 2897524717 is a prime.

It is a super-2 number, since 2×2897524781² = 16791299713018195922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2897524789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1448762390 + 1448762391.

It is an arithmetic number, because the mean of its divisors is an integer number (1448762391).

Almost surely, 2^2897524781 is an apocalyptic number.

It is an amenable number.

2897524781 is a deficient number, since it is larger than the sum of its proper divisors (1).

2897524781 is an equidigital number, since it uses as much as digits as its factorization.

2897524781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2257920, while the sum is 53.

The square root of 2897524781 is about 53828.6613339028. The cubic root of 2897524781 is about 1425.6373110716.

The spelling of 2897524781 in words is "two billion, eight hundred ninety-seven million, five hundred twenty-four thousand, seven hundred eighty-one".