1964923 has 6 divisors (see below), whose sum is σ = 2074164. Its totient is φ = 1861164.

The previous prime is 1964917. The next prime is 1964927. The reversal of 1964923 is 3294691.

It is not a de Polignac number, because 1964923 - 2⁹ = 1964411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1964927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2361 + ... + 3082.

It is an arithmetic number, because the mean of its divisors is an integer number (345694).

2^1964923 is an apocalyptic number.

1964923 is a deficient number, since it is larger than the sum of its proper divisors (109241).

1964923 is an equidigital number, since it uses as much as digits as its factorization.

1964923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5481 (or 5462 counting only the distinct ones).

The product of its digits is 11664, while the sum is 34.

The square root of 1964923 is about 1401.7571116281. The cubic root of 1964923 is about 125.2511855750.

The spelling of 1964923 in words is "one million, nine hundred sixty-four thousand, nine hundred twenty-three".