919963 has 6 divisors (see below), whose sum is σ = 1011332. Its totient is φ = 836220.

The previous prime is 919951. The next prime is 919969. The reversal of 919963 is 369919.

919963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 919963 - 2¹⁷ = 788891 is a prime.

It is a Duffinian number.

919963 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (919969) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3681 + ... + 3922.

2⁹¹⁹⁹⁶³ is an apocalyptic number.

919963 is a deficient number, since it is larger than the sum of its proper divisors (91369).

919963 is a wasteful number, since it uses less digits than its factorization.

919963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7625 (or 7614 counting only the distinct ones).

The product of its digits is 13122, while the sum is 37.

The square root of 919963 is about 959.1470168853. The cubic root of 919963 is about 97.2575787716.

The spelling of 919963 in words is "nine hundred nineteen thousand, nine hundred sixty-three".