1063572961 has 4 divisors (see below), whose sum is σ = 1160261424. Its totient is φ = 966884500.

The previous prime is 1063572943. The next prime is 1063572977. The reversal of 1063572961 is 1692753601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1063572961 - 2¹¹ = 1063570913 is a prime.

It is a super-3 number, since 3×1063572961³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1063572911) 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, 48344215 + ... + 48344236.

It is an arithmetic number, because the mean of its divisors is an integer number (290065356).

Almost surely, 2^1063572961 is an apocalyptic number.

1063572961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1063572961 is a deficient number, since it is larger than the sum of its proper divisors (96688463).

1063572961 is an equidigital number, since it uses as much as digits as its factorization.

1063572961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96688462.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 1063572961 is about 32612.4663434092. The cubic root of 1063572961 is about 1020.7571467244.

The spelling of 1063572961 in words is "one billion, sixty-three million, five hundred seventy-two thousand, nine hundred sixty-one".