1317977088 has 88 divisors (see below), whose sum is σ = 3719677392. Its totient is φ = 413466624.

The previous prime is 1317977077. The next prime is 1317977117. The reversal of 1317977088 is 8807797131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 1317977088.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39606 + ... + 64842.

Almost surely, 2^1317977088 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 1317977088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1859838696).

1317977088 is an abundant number, since it is smaller than the sum of its proper divisors (2401700304).

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

1317977088 is a wasteful number, since it uses less digits than its factorization.

1317977088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25277 (or 25259 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 51.

The square root of 1317977088 is about 36303.9541648014. The cubic root of 1317977088 is about 1096.4006562594.

The spelling of 1317977088 in words is "one billion, three hundred seventeen million, nine hundred seventy-seven thousand, eighty-eight".