1964701994 has 16 divisors (see below), whose sum is σ = 2959451208. Its totient is φ = 978227712.

The previous prime is 1964701987. The next prime is 1964702009. The reversal of 1964701994 is 4991074691.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1028035969 + 936666025 = 32063^2 + 30605^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 532484 + ... + 536160.

Almost surely, 2^1964701994 is an apocalyptic number.

1964701994 is a deficient number, since it is larger than the sum of its proper divisors (994749214).

1964701994 is a wasteful number, since it uses less digits than its factorization.

1964701994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4729.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 1964701994 is about 44324.9590411542. The cubic root of 1964701994 is about 1252.4648949594.

The spelling of 1964701994 in words is "one billion, nine hundred sixty-four million, seven hundred one thousand, nine hundred ninety-four".