19782963 has 12 divisors (see below), whose sum is σ = 28766608. Its totient is φ = 13100400.

The previous prime is 19782953. The next prime is 19782977. The reversal of 19782963 is 36928791.

It is not a de Polignac number, because 19782963 - 2⁴ = 19782947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19782913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5920 + ... + 8637.

Almost surely, 2^19782963 is an apocalyptic number.

19782963 is a deficient number, since it is larger than the sum of its proper divisors (8983645).

19782963 is a wasteful number, since it uses less digits than its factorization.

19782963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14714 (or 14711 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 19782963 is about 4447.8042897592. The cubic root of 19782963 is about 270.4563065856.

The spelling of 19782963 in words is "nineteen million, seven hundred eighty-two thousand, nine hundred sixty-three".