3993608025 has 81 divisors (see below), whose sum is σ = 7882965727. Its totient is φ = 1931239200.

The previous prime is 3993607999. The next prime is 3993608033. The reversal of 3993608025 is 5208063993.

The square root of 3993608025 is 63195.

It is a perfect power (a square), and thus also a powerful number.

3993608025 is a `hidden beast` number, since 39 + 9 + 3 + 608 + 0 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1437698889 + 2555909136 = 37917^2 + 50556^2 .

It is not a de Polignac number, because 3993608025 - 2⁷ = 3993607897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 10426984 + ... + 10427366.

Almost surely, 2^3993608025 is an apocalyptic number.

3993608025 is the 63195-th square number.

3993608025 is the 31598-th centered octagonal number.

It is an amenable number.

3993608025 is a deficient number, since it is larger than the sum of its proper divisors (3889357702).

3993608025 is a wasteful number, since it uses less digits than its factorization.

3993608025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The cubic root of 3993608025 is about 1586.5550488522. Note that the first 3 decimals are identical.

The spelling of 3993608025 in words is "three billion, nine hundred ninety-three million, six hundred eight thousand, twenty-five".