1964109 has 8 divisors (see below), whose sum is σ = 2992960. Its totient is φ = 1122336.

The previous prime is 1964101. The next prime is 1964113. The reversal of 1964109 is 9014691.

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

It is not a de Polignac number, because 1964109 - 2³ = 1964101 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964101) 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, 46744 + ... + 46785.

It is an arithmetic number, because the mean of its divisors is an integer number (374120).

2^1964109 is an apocalyptic number.

It is an amenable number.

1964109 is a deficient number, since it is larger than the sum of its proper divisors (1028851).

1964109 is an equidigital number, since it uses as much as digits as its factorization.

1964109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93539.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 1964109 is about 1401.4667316779. The cubic root of 1964109 is about 125.2338874337.

The spelling of 1964109 in words is "one million, nine hundred sixty-four thousand, one hundred nine".