3890647544 has 32 divisors (see below), whose sum is σ = 8415031680. Its totient is φ = 1651834464.

The previous prime is 3890647487. The next prime is 3890647559. The reversal of 3890647544 is 4457460983.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3890647492 and 3890647501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318662 + ... + 330645.

It is an arithmetic number, because the mean of its divisors is an integer number (262969740).

Almost surely, 2^3890647544 is an apocalyptic number.

It is an amenable number.

3890647544 is an abundant number, since it is smaller than the sum of its proper divisors (4524384136).

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

3890647544 is a wasteful number, since it uses less digits than its factorization.

3890647544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649427 (or 649423 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 50.

The square root of 3890647544 is about 62375.0554629012. The cubic root of 3890647544 is about 1572.8016757132.

The spelling of 3890647544 in words is "three billion, eight hundred ninety million, six hundred forty-seven thousand, five hundred forty-four".