3890404564 has 12 divisors (see below), whose sum is σ = 6919818388. Its totient is φ = 1913313600.

The previous prime is 3890404561. The next prime is 3890404571. The reversal of 3890404564 is 4654040983.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1066544964 + 2823859600 = 32658^2 + 53140^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3890404564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890404561) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7971897 + ... + 7972384.

Almost surely, 2^3890404564 is an apocalyptic number.

It is an amenable number.

3890404564 is a deficient number, since it is larger than the sum of its proper divisors (3029413824).

3890404564 is a wasteful number, since it uses less digits than its factorization.

3890404564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15944346 (or 15944344 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The square root of 3890404564 is about 62373.1076987511. The cubic root of 3890404564 is about 1572.7689333224.

The spelling of 3890404564 in words is "three billion, eight hundred ninety million, four hundred four thousand, five hundred sixty-four".