1962009 has 24 divisors (see below), whose sum is σ = 3383520. Its totient is φ = 1120392.

The previous prime is 1962001. The next prime is 1962011. The reversal of 1962009 is 9002691.

It is a happy number.

It is not a de Polignac number, because 1962009 - 2³ = 1962001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1962001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 582 + ... + 2064.

It is an arithmetic number, because the mean of its divisors is an integer number (140980).

2^1962009 is an apocalyptic number.

It is an amenable number.

1962009 is a deficient number, since it is larger than the sum of its proper divisors (1421511).

1962009 is a wasteful number, since it uses less digits than its factorization.

1962009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506 (or 1493 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 1962009 is about 1400.7173162348. The cubic root of 1962009 is about 125.1892386985.

The spelling of 1962009 in words is "one million, nine hundred sixty-two thousand, nine".