1021963 has 2 divisors, whose sum is σ = 1021964. Its totient is φ = 1021962.

The previous prime is 1021961. The next prime is 1021973. The reversal of 1021963 is 3691201.

1021963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021963 - 2¹ = 1021961 is a prime.

Together with 1021961, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1021961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510981 + 510982.

It is an arithmetic number, because the mean of its divisors is an integer number (510982).

2^1021963 is an apocalyptic number.

1021963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021963 is an equidigital number, since it uses as much as digits as its factorization.

1021963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1021963 is about 1010.9218565250. The cubic root of 1021963 is about 100.7268047508.

The spelling of 1021963 in words is "one million, twenty-one thousand, nine hundred sixty-three".