1964633 has 4 divisors (see below), whose sum is σ = 2143248. Its totient is φ = 1786020.

The previous prime is 1964629. The next prime is 1964659. The reversal of 1964633 is 3364691.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1964633 - 2² = 1964629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1964633.

It is not an unprimeable number, because it can be changed into a prime (1964603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89291 + ... + 89312.

It is an arithmetic number, because the mean of its divisors is an integer number (535812).

2^1964633 is an apocalyptic number.

It is an amenable number.

1964633 is a deficient number, since it is larger than the sum of its proper divisors (178615).

1964633 is a wasteful number, since it uses less digits than its factorization.

1964633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178614.

The product of its digits is 11664, while the sum is 32.

The square root of 1964633 is about 1401.6536662100. The cubic root of 1964633 is about 125.2450233945.

The spelling of 1964633 in words is "one million, nine hundred sixty-four thousand, six hundred thirty-three".