1992887169 has 32 divisors (see below), whose sum is σ = 3462762240. Its totient is φ = 989356032.

The previous prime is 1992887161. The next prime is 1992887177. The reversal of 1992887169 is 9617882991.

It is an interprime number because it is at equal distance from previous prime (1992887161) and next prime (1992887177).

It is not a de Polignac number, because 1992887169 - 2³ = 1992887161 is a prime.

It is a super-2 number, since 2×1992887169² = 7943198536729669122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1992887161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210064 + ... + 219345.

It is an arithmetic number, because the mean of its divisors is an integer number (108211320).

Almost surely, 2^1992887169 is an apocalyptic number.

It is an amenable number.

1992887169 is a deficient number, since it is larger than the sum of its proper divisors (1469875071).

1992887169 is a wasteful number, since it uses less digits than its factorization.

1992887169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429449.

The product of its digits is 3919104, while the sum is 60.

The square root of 1992887169 is about 44641.7648508658. The cubic root of 1992887169 is about 1258.4256748495.

The spelling of 1992887169 in words is "one billion, nine hundred ninety-two million, eight hundred eighty-seven thousand, one hundred sixty-nine".