3628392921 has 16 divisors (see below), whose sum is σ = 5417728000. Its totient is φ = 2399879664.

The previous prime is 3628392917. The next prime is 3628393039. The reversal of 3628392921 is 1292938263.

It is a happy number.

It is not a de Polignac number, because 3628392921 - 2² = 3628392917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3628392121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525646 + ... + 532503.

It is an arithmetic number, because the mean of its divisors is an integer number (338608000).

Almost surely, 2^3628392921 is an apocalyptic number.

It is an amenable number.

3628392921 is a deficient number, since it is larger than the sum of its proper divisors (1789335079).

3628392921 is a wasteful number, since it uses less digits than its factorization.

3628392921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058285 (or 1058279 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 3628392921 is about 60236.1429791118. The cubic root of 3628392921 is about 1536.6375336574.

The spelling of 3628392921 in words is "three billion, six hundred twenty-eight million, three hundred ninety-two thousand, nine hundred twenty-one".