1996917646 has 16 divisors (see below), whose sum is σ = 3029972400. Its totient is φ = 986989248.

The previous prime is 1996917589. The next prime is 1996917673. The reversal of 1996917646 is 6467196991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49360 + ... + 80188.

It is an arithmetic number, because the mean of its divisors is an integer number (189373275).

Almost surely, 2^1996917646 is an apocalyptic number.

1996917646 is a deficient number, since it is larger than the sum of its proper divisors (1033054754).

1996917646 is a wasteful number, since it uses less digits than its factorization.

1996917646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31203.

The product of its digits is 4408992, while the sum is 58.

The square root of 1996917646 is about 44686.8844964605. The cubic root of 1996917646 is about 1259.2734633177.

The spelling of 1996917646 in words is "one billion, nine hundred ninety-six million, nine hundred seventeen thousand, six hundred forty-six".