1992085 has 4 divisors (see below), whose sum is σ = 2390508. Its totient is φ = 1593664.

The previous prime is 1992079. The next prime is 1992101. The reversal of 1992085 is 5802991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5802991 = 61 ⋅95131.

It can be written as a sum of positive squares in 2 ways, for example, as 1552516 + 439569 = 1246^2 + 663^2 .

It is a cyclic number.

It is not a de Polignac number, because 1992085 - 2⁹ = 1991573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1992085.

It is a congruent number.

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, 199204 + ... + 199213.

It is an arithmetic number, because the mean of its divisors is an integer number (597627).

2^1992085 is an apocalyptic number.

It is an amenable number.

1992085 is a deficient number, since it is larger than the sum of its proper divisors (398423).

1992085 is an equidigital number, since it uses as much as digits as its factorization.

1992085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398422.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 1992085 is about 1411.4124131522. The cubic root of 1992085 is about 125.8256806694.

The spelling of 1992085 in words is "one million, nine hundred ninety-two thousand, eighty-five".