3147698556 has 144 divisors (see below), whose sum is σ = 8524099584. Its totient is φ = 1015047936.

The previous prime is 3147698549. The next prime is 3147698611. The reversal of 3147698556 is 6558967413.

3147698556 is a `hidden beast` number, since 3 + 14 + 76 + 9 + 8 + 556 = 666.

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

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, 5307796 + ... + 5308388.

It is an arithmetic number, because the mean of its divisors is an integer number (59195136).

Almost surely, 2^3147698556 is an apocalyptic number.

3147698556 is a gapful number since it is divisible by the number (36) 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 3147698556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4262049792).

3147698556 is an abundant number, since it is smaller than the sum of its proper divisors (5376401028).

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

3147698556 is a wasteful number, since it uses less digits than its factorization.

3147698556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 768 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 3147698556 is about 56104.3541625781. The cubic root of 3147698556 is about 1465.5401186886.

The spelling of 3147698556 in words is "three billion, one hundred forty-seven million, six hundred ninety-eight thousand, five hundred fifty-six".