1063442623 has 4 divisors (see below), whose sum is σ = 1068211648. Its totient is φ = 1058673600.

The previous prime is 1063442617. The next prime is 1063442629. The reversal of 1063442623 is 3262443601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3262443601 = 823 ⋅3964087.

It is an interprime number because it is at equal distance from previous prime (1063442617) and next prime (1063442629).

It is a cyclic number.

It is not a de Polignac number, because 1063442623 - 2⁹ = 1063442111 is a prime.

It is a super-2 number, since 2×1063442623² = 2261820424826240258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1063442629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2384178 + ... + 2384623.

It is an arithmetic number, because the mean of its divisors is an integer number (267052912).

Almost surely, 2^1063442623 is an apocalyptic number.

1063442623 is a deficient number, since it is larger than the sum of its proper divisors (4769025).

1063442623 is an equidigital number, since it uses as much as digits as its factorization.

1063442623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4769024.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 1063442623 is about 32610.4679972551. The cubic root of 1063442623 is about 1020.7154480085.

The spelling of 1063442623 in words is "one billion, sixty-three million, four hundred forty-two thousand, six hundred twenty-three".