1969901 has 8 divisors (see below), whose sum is σ = 2088000. Its totient is φ = 1853280.

The previous prime is 1969889. The next prime is 1969907. The reversal of 1969901 is 1099691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1969901 - 2¹⁴ = 1953517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1969907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3521 + ... + 4041.

It is an arithmetic number, because the mean of its divisors is an integer number (261000).

2^1969901 is an apocalyptic number.

It is an amenable number.

1969901 is a deficient number, since it is larger than the sum of its proper divisors (118099).

1969901 is a wasteful number, since it uses less digits than its factorization.

1969901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739.

The product of its (nonzero) digits is 4374, while the sum is 35.

The square root of 1969901 is about 1403.5316170290. The cubic root of 1969901 is about 125.3568681912.

The spelling of 1969901 in words is "one million, nine hundred sixty-nine thousand, nine hundred one".