2897539820 has 48 divisors (see below), whose sum is σ = 7052064768. Its totient is φ = 979446720.

The previous prime is 2897539811. The next prime is 2897539829. The reversal of 2897539820 is 289357982.

It is an interprime number because it is at equal distance from previous prime (2897539811) and next prime (2897539829).

It is a super-3 number, since 3×2897539820³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2897539829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135812 + ... + 155691.

It is an arithmetic number, because the mean of its divisors is an integer number (146918016).

Almost surely, 2^2897539820 is an apocalyptic number.

2897539820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2897539820 is an abundant number, since it is smaller than the sum of its proper divisors (4154524948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2897539820 is a wasteful number, since it uses less digits than its factorization.

2897539820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291590 (or 291588 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 2897539820 is about 53828.8010269595. The cubic root of 2897539820 is about 1425.6397775587.

The spelling of 2897539820 in words is "two billion, eight hundred ninety-seven million, five hundred thirty-nine thousand, eight hundred twenty".