2887897784 has 32 divisors (see below), whose sum is σ = 5511818880. Its totient is φ = 1418206944.

The previous prime is 2887897781. The next prime is 2887897787. The reversal of 2887897784 is 4877987882.

It is an interprime number because it is at equal distance from previous prime (2887897781) and next prime (2887897787).

It is a super-2 number, since 2×2887897784² = 16679907221664221312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2887897781) 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, 178229 + ... + 193755.

It is an arithmetic number, because the mean of its divisors is an integer number (172244340).

Almost surely, 2^2887897784 is an apocalyptic number.

It is an amenable number.

2887897784 is a deficient number, since it is larger than the sum of its proper divisors (2623921096).

2887897784 is a wasteful number, since it uses less digits than its factorization.

2887897784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15947 (or 15943 counting only the distinct ones).

The product of its digits is 101154816, while the sum is 68.

The square root of 2887897784 is about 53739.1643403580. The cubic root of 2887897784 is about 1424.0566706711.

The spelling of 2887897784 in words is "two billion, eight hundred eighty-seven million, eight hundred ninety-seven thousand, seven hundred eighty-four".