1964047 has 2 divisors, whose sum is σ = 1964048. Its totient is φ = 1964046.

The previous prime is 1964041. The next prime is 1964059. The reversal of 1964047 is 7404691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1964047 - 2¹⁹ = 1439759 is a prime.

1964047 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1964041) 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 as a sum of consecutive naturals, namely, 982023 + 982024.

It is an arithmetic number, because the mean of its divisors is an integer number (982024).

2^1964047 is an apocalyptic number.

1964047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1964047 is an equidigital number, since it uses as much as digits as its factorization.

1964047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1964047 is about 1401.4446118202. Note that the first 3 decimals coincide. The cubic root of 1964047 is about 125.2325696890.

The spelling of 1964047 in words is "one million, nine hundred sixty-four thousand, forty-seven".