1963747797 has 32 divisors (see below), whose sum is σ = 2985016320. Its totient is φ = 1136699520.

The previous prime is 1963747769. The next prime is 1963747801. The reversal of 1963747797 is 7977473691.

It is not a de Polignac number, because 1963747797 - 2⁶ = 1963747733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1963747797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1963747757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 648954 + ... + 651972.

It is an arithmetic number, because the mean of its divisors is an integer number (93281760).

Almost surely, 2^1963747797 is an apocalyptic number.

It is an amenable number.

1963747797 is a deficient number, since it is larger than the sum of its proper divisors (1021268523).

1963747797 is a wasteful number, since it uses less digits than its factorization.

1963747797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3913.

The product of its digits is 14002632, while the sum is 60.

The square root of 1963747797 is about 44314.1940804524. The cubic root of 1963747797 is about 1252.2621005448.

The spelling of 1963747797 in words is "one billion, nine hundred sixty-three million, seven hundred forty-seven thousand, seven hundred ninety-seven".