903728385 has 48 divisors (see below), whose sum is σ = 1792492416. Its totient is φ = 412614144.

The previous prime is 903728383. The next prime is 903728389. The reversal of 903728385 is 583827309.

It is not a de Polignac number, because 903728385 - 2¹ = 903728383 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 903728385.

It is not an unprimeable number, because it can be changed into a prime (903728383) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 372697 + ... + 375113.

It is an arithmetic number, because the mean of its divisors is an integer number (37343592).

Almost surely, 2^903728385 is an apocalyptic number.

It is an amenable number.

903728385 is a deficient number, since it is larger than the sum of its proper divisors (888764031).

903728385 is a wasteful number, since it uses less digits than its factorization.

903728385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3622 (or 3619 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 903728385 is about 30062.0755271488. The cubic root of 903728385 is about 966.8207759982.

The spelling of 903728385 in words is "nine hundred three million, seven hundred twenty-eight thousand, three hundred eighty-five".