1964966 has 16 divisors (see below), whose sum is σ = 3120768. Its totient is φ = 926400.

The previous prime is 1964951. The next prime is 1964969. The reversal of 1964966 is 6694691.

It is a super-2 number, since 2×1964966² = 7722182762312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2156 + ... + 2928.

It is an arithmetic number, because the mean of its divisors is an integer number (195048).

2^1964966 is an apocalyptic number.

1964966 is a deficient number, since it is larger than the sum of its proper divisors (1155802).

1964966 is a wasteful number, since it uses less digits than its factorization.

1964966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847.

The product of its digits is 69984, while the sum is 41.

The square root of 1964966 is about 1401.7724494368. The cubic root of 1964966 is about 125.2520992260.

The spelling of 1964966 in words is "one million, nine hundred sixty-four thousand, nine hundred sixty-six".