1087197552 has 240 divisors, whose sum is σ = 3693930240. Its totient is φ = 303077376.

The previous prime is 1087197547. The next prime is 1087197569. The reversal of 1087197552 is 2557917801.

1087197552 is a `hidden beast` number, since 1 + 0 + 8 + 7 + 1 + 97 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1087197498 and 1087197507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1169824 + ... + 1170752.

It is an arithmetic number, because the mean of its divisors is an integer number (15391376).

Almost surely, 2^1087197552 is an apocalyptic number.

1087197552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1087197552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1846965120).

1087197552 is an abundant number, since it is smaller than the sum of its proper divisors (2606732688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1087197552 is an equidigital number, since it uses as much as digits as its factorization.

1087197552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 45.

The square root of 1087197552 is about 32972.6788720601. The cubic root of 1087197552 is about 1028.2597162583.

The spelling of 1087197552 in words is "one billion, eighty-seven million, one hundred ninety-seven thousand, five hundred fifty-two".