1089972577 has 8 divisors (see below), whose sum is σ = 1116992520. Its totient is φ = 1062973440.

The previous prime is 1089972571. The next prime is 1089972589. The reversal of 1089972577 is 7752799801.

It can be written as a sum of positive squares in 4 ways, for example, as 438651136 + 651321441 = 20944^2 + 25521^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1089972577 is a prime.

It is a super-2 number, since 2×1089972577² = 2376080437224041858, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1089972571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188749 + ... + 194437.

It is an arithmetic number, because the mean of its divisors is an integer number (139624065).

Almost surely, 2^1089972577 is an apocalyptic number.

It is an amenable number.

1089972577 is a deficient number, since it is larger than the sum of its proper divisors (27019943).

1089972577 is an equidigital number, since it uses as much as digits as its factorization.

1089972577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10403.

The product of its (nonzero) digits is 2222640, while the sum is 55.

The square root of 1089972577 is about 33014.7327264662. The cubic root of 1089972577 is about 1029.1338358649.

The spelling of 1089972577 in words is "one billion, eighty-nine million, nine hundred seventy-two thousand, five hundred seventy-seven".