2097881992 has 16 divisors (see below), whose sum is σ = 3937092300. Its totient is φ = 1047990720.

The previous prime is 2097881983. The next prime is 2097882001. The reversal of 2097881992 is 2991887902.

It is an interprime number because it is at equal distance from previous prime (2097881983) and next prime (2097882001).

It can be written as a sum of positive squares in 2 ways, for example, as 1501252516 + 596629476 = 38746^2 + 24426^2 .

It is a super-2 number, since 2×2097881992² = 8802217704715776128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109359 + ... + 127102.

Almost surely, 2^2097881992 is an apocalyptic number.

It is an amenable number.

2097881992 is a deficient number, since it is larger than the sum of its proper divisors (1839210308).

2097881992 is a wasteful number, since it uses less digits than its factorization.

2097881992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237576 (or 237572 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 55.

The square root of 2097881992 is about 45802.6417578724. The cubic root of 2097881992 is about 1280.1485000236.

The spelling of 2097881992 in words is "two billion, ninety-seven million, eight hundred eighty-one thousand, nine hundred ninety-two".