619963 has 4 divisors (see below), whose sum is σ = 622168. Its totient is φ = 617760.

The previous prime is 619921. The next prime is 619967. The reversal of 619963 is 369916.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-619963 is a prime.

It is a Duffinian number.

619963 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (619967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606 + ... + 1267.

It is an arithmetic number, because the mean of its divisors is an integer number (155542).

2⁶¹⁹⁹⁶³ is an apocalyptic number.

619963 is a deficient number, since it is larger than the sum of its proper divisors (2205).

619963 is a wasteful number, since it uses less digits than its factorization.

619963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204.

The product of its digits is 8748, while the sum is 34.

The square root of 619963 is about 787.3772920271. The cubic root of 619963 is about 85.2684935641.

Subtracting from 619963 its reverse (369916), we obtain a cube (250047 = 63³).

The spelling of 619963 in words is "six hundred nineteen thousand, nine hundred sixty-three".