1964071 has 8 divisors (see below), whose sum is σ = 2039840. Its totient is φ = 1889568.

The previous prime is 1964063. The next prime is 1964077. The reversal of 1964071 is 1704691.

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

It is a 5-Lehmer number, since φ(1964071) divides (1964071-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 1964071 - 2³ = 1964063 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 (1964077) 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, 3790 + ... + 4276.

It is an arithmetic number, because the mean of its divisors is an integer number (254980).

2^1964071 is an apocalyptic number.

1964071 is a deficient number, since it is larger than the sum of its proper divisors (75769).

1964071 is a wasteful number, since it uses less digits than its factorization.

1964071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1964071 is about 1401.4531743872. The cubic root of 1964071 is about 125.2330797870.

The spelling of 1964071 in words is "one million, nine hundred sixty-four thousand, seventy-one".