2797288981 has 8 divisors (see below), whose sum is σ = 2820527424. Its totient is φ = 2774079360.

The previous prime is 2797288979. The next prime is 2797288997. The reversal of 2797288981 is 1898827972.

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 2797288981 - 2¹ = 2797288979 is a prime.

It is a super-2 number, since 2×2797288981² = 15649651286448036722, 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 (2797288951) 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, 216016 + ... + 228598.

It is an arithmetic number, because the mean of its divisors is an integer number (352565928).

Almost surely, 2^2797288981 is an apocalyptic number.

It is an amenable number.

2797288981 is a deficient number, since it is larger than the sum of its proper divisors (23238443).

2797288981 is a wasteful number, since it uses less digits than its factorization.

2797288981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14411.

The product of its digits is 8128512, while the sum is 61.

The square root of 2797288981 is about 52889.4032959344. The cubic root of 2797288981 is about 1409.0047099808.

The spelling of 2797288981 in words is "two billion, seven hundred ninety-seven million, two hundred eighty-eight thousand, nine hundred eighty-one".