1992825 has 36 divisors (see below), whose sum is σ = 3786588. Its totient is φ = 998400.

The previous prime is 1992817. The next prime is 1992839. The reversal of 1992825 is 5282991.

It can be written as a sum of positive squares in 6 ways, for example, as 21609 + 1971216 = 147^2 + 1404^2 .

It is not a de Polignac number, because 1992825 - 2³ = 1992817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1992825.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3565 + ... + 4085.

It is an arithmetic number, because the mean of its divisors is an integer number (105183).

2^1992825 is an apocalyptic number.

1992825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1992825 is a deficient number, since it is larger than the sum of its proper divisors (1793763).

1992825 is a wasteful number, since it uses less digits than its factorization.

1992825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 546 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 1992825 is about 1411.6745375617. The cubic root of 1992825 is about 125.8412588998.

The spelling of 1992825 in words is "one million, nine hundred ninety-two thousand, eight hundred twenty-five".