3685028399 has 4 divisors (see below), whose sum is σ = 3968492136. Its totient is φ = 3401564664.

The previous prime is 3685028371. The next prime is 3685028401. The reversal of 3685028399 is 9938205863.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3685028399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3685028399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3685028339) 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 3 ways as a sum of consecutive naturals, for example, 141731849 + ... + 141731874.

It is an arithmetic number, because the mean of its divisors is an integer number (992123034).

Almost surely, 2^3685028399 is an apocalyptic number.

3685028399 is a deficient number, since it is larger than the sum of its proper divisors (283463737).

3685028399 is a wasteful number, since it uses less digits than its factorization.

3685028399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283463736.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The square root of 3685028399 is about 60704.4347556256. The cubic root of 3685028399 is about 1544.5914021631.

The spelling of 3685028399 in words is "three billion, six hundred eighty-five million, twenty-eight thousand, three hundred ninety-nine".