1964263 has 6 divisors (see below), whose sum is σ = 2285016. Its totient is φ = 1683612.

The previous prime is 1964243. The next prime is 1964297. The reversal of 1964263 is 3624691.

It is not a de Polignac number, because 1964263 - 2⁹ = 1963751 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 (1964203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19995 + ... + 20092.

It is an arithmetic number, because the mean of its divisors is an integer number (380836).

2^1964263 is an apocalyptic number.

1964263 is a deficient number, since it is larger than the sum of its proper divisors (320753).

1964263 is an equidigital number, since it uses as much as digits as its factorization.

1964263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40101 (or 40094 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

The square root of 1964263 is about 1401.5216730397. The cubic root of 1964263 is about 125.2371604216.

The spelling of 1964263 in words is "one million, nine hundred sixty-four thousand, two hundred sixty-three".