2797961000 has 32 divisors (see below), whose sum is σ = 6547231080. Its totient is φ = 1119184000.

The previous prime is 2797960999. The next prime is 2797961027. The reversal of 2797961000 is 1697972.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 566154436 + 2231806564 = 23794^2 + 47242^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1397981 + ... + 1399980.

Almost surely, 2^2797961000 is an apocalyptic number.

2797961000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2797961000 is an abundant number, since it is smaller than the sum of its proper divisors (3749270080).

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

2797961000 is a wasteful number, since it uses less digits than its factorization.

2797961000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797982 (or 2797968 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 2797961000 is about 52895.7559734238. The cubic root of 2797961000 is about 1409.1175337573.

The spelling of 2797961000 in words is "two billion, seven hundred ninety-seven million, nine hundred sixty-one thousand".