1172787088 has 80 divisors (see below), whose sum is σ = 2536980480. Its totient is φ = 520732800.

The previous prime is 1172787067. The next prime is 1172787131. The reversal of 1172787088 is 8807872711.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1586623 + ... + 1587361.

It is an arithmetic number, because the mean of its divisors is an integer number (31712256).

Almost surely, 2^1172787088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1172787088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1268490240).

1172787088 is an abundant number, since it is smaller than the sum of its proper divisors (1364193392).

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

1172787088 is a wasteful number, since it uses less digits than its factorization.

1172787088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956 (or 950 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 49.

The square root of 1172787088 is about 34245.9791508434. The cubic root of 1172787088 is about 1054.5642841844.

The spelling of 1172787088 in words is "one billion, one hundred seventy-two million, seven hundred eighty-seven thousand, eighty-eight".