3928550429 has 8 divisors (see below), whose sum is σ = 4038102072. Its totient is φ = 3820311040.

The previous prime is 3928550401. The next prime is 3928550471. The reversal of 3928550429 is 9240558293.

3928550429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11042329 + 3917508100 = 3323^2 + 62590^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3928550429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3928550929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321992 + ... + 333969.

It is an arithmetic number, because the mean of its divisors is an integer number (504762759).

Almost surely, 2^3928550429 is an apocalyptic number.

It is an amenable number.

3928550429 is a deficient number, since it is larger than the sum of its proper divisors (109551643).

3928550429 is a wasteful number, since it uses less digits than its factorization.

3928550429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656127.

The product of its (nonzero) digits is 777600, while the sum is 47.

The square root of 3928550429 is about 62678.1495339484. The cubic root of 3928550429 is about 1577.8926170647.

The spelling of 3928550429 in words is "three billion, nine hundred twenty-eight million, five hundred fifty thousand, four hundred twenty-nine".