3257987508 has 144 divisors (see below), whose sum is σ = 9173533824. Its totient is φ = 1007354880.

The previous prime is 3257987503. The next prime is 3257987519. The reversal of 3257987508 is 8057897523.

3257987508 is a `hidden beast` number, since 3 + 2 + 57 + 9 + 87 + 508 = 666.

It is a super-2 number, since 2×3257987508² = 21228965204568100128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3257987503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1171816 + ... + 1174592.

It is an arithmetic number, because the mean of its divisors is an integer number (63705096).

Almost surely, 2^3257987508 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 3257987508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4586766912).

3257987508 is an abundant number, since it is smaller than the sum of its proper divisors (5915546316).

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

3257987508 is a wasteful number, since it uses less digits than its factorization.

3257987508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2884 (or 2870 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The square root of 3257987508 is about 57078.7833437259. The cubic root of 3257987508 is about 1482.4605266153.

The spelling of 3257987508 in words is "three billion, two hundred fifty-seven million, nine hundred eighty-seven thousand, five hundred eight".