1969825 has 48 divisors (see below), whose sum is σ = 3124800. Its totient is φ = 1209600.

The previous prime is 1969819. The next prime is 1969829. The reversal of 1969825 is 5289691.

It is not a de Polignac number, because 1969825 - 2¹³ = 1961633 is a prime.

1969825 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1969829) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67911 + ... + 67939.

It is an arithmetic number, because the mean of its divisors is an integer number (65100).

2^1969825 is an apocalyptic number.

It is an amenable number.

1969825 is a deficient number, since it is larger than the sum of its proper divisors (1154975).

1969825 is a wasteful number, since it uses less digits than its factorization.

1969825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 77 counting only the distinct ones).

The product of its digits is 38880, while the sum is 40.

The square root of 1969825 is about 1403.5045422085. The cubic root of 1969825 is about 125.3552560553.

The spelling of 1969825 in words is "one million, nine hundred sixty-nine thousand, eight hundred twenty-five".