1087448569 has 4 divisors (see below), whose sum is σ = 1095272080. Its totient is φ = 1079625060.

The previous prime is 1087448561. The next prime is 1087448587. The reversal of 1087448569 is 9658447801.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9658447801 = 18041 ⋅535361.

It is a cyclic number.

It is not a de Polignac number, because 1087448569 - 2³ = 1087448561 is a prime.

It is a super-2 number, since 2×1087448569² = 2365088780440295522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1087448561) 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, 3911547 + ... + 3911824.

It is an arithmetic number, because the mean of its divisors is an integer number (273818020).

Almost surely, 2^1087448569 is an apocalyptic number.

It is an amenable number.

1087448569 is a deficient number, since it is larger than the sum of its proper divisors (7823511).

1087448569 is an equidigital number, since it uses as much as digits as its factorization.

1087448569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7823510.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The square root of 1087448569 is about 32976.4850916528. The cubic root of 1087448569 is about 1028.3388465588.

The spelling of 1087448569 in words is "one billion, eighty-seven million, four hundred forty-eight thousand, five hundred sixty-nine".