3646448487 has 24 divisors (see below), whose sum is σ = 5944058640. Its totient is φ = 2133761280.

The previous prime is 3646448483. The next prime is 3646448537. The reversal of 3646448487 is 7848446463.

3646448487 is a `hidden beast` number, since 3 + 64 + 64 + 48 + 487 = 666.

It is not a de Polignac number, because 3646448487 - 2² = 3646448483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3646448483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 632178 + ... + 637919.

It is an arithmetic number, because the mean of its divisors is an integer number (247669110).

Almost surely, 2^3646448487 is an apocalyptic number.

3646448487 is a deficient number, since it is larger than the sum of its proper divisors (2297610153).

3646448487 is a wasteful number, since it uses less digits than its factorization.

3646448487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270143 (or 1270140 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 54.

The square root of 3646448487 is about 60385.8301839099. The cubic root of 3646448487 is about 1539.1821832770.

The spelling of 3646448487 in words is "three billion, six hundred forty-six million, four hundred forty-eight thousand, four hundred eighty-seven".