3997148652 has 144 divisors (see below), whose sum is σ = 11839027200. Its totient is φ = 1113388416.

The previous prime is 3997148641. The next prime is 3997148663. The reversal of 3997148652 is 2568417993.

3997148652 is a `hidden beast` number, since 3 + 99 + 71 + 486 + 5 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (3997148641) and next prime (3997148663).

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, 4133073 + ... + 4134039.

Almost surely, 2^3997148652 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 3997148652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5919513600).

3997148652 is an abundant number, since it is smaller than the sum of its proper divisors (7841878548).

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

3997148652 is a wasteful number, since it uses less digits than its factorization.

3997148652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380 (or 1375 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 3997148652 is about 63223.0072995583. The cubic root of 3997148652 is about 1587.0237762407.

The spelling of 3997148652 in words is "three billion, nine hundred ninety-seven million, one hundred forty-eight thousand, six hundred fifty-two".