3650538621 has 8 divisors (see below), whose sum is σ = 4980580000. Its totient is φ = 2377094832.

The previous prime is 3650538613. The next prime is 3650538623. The reversal of 3650538621 is 1268350563.

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

It is not a de Polignac number, because 3650538621 - 2³ = 3650538613 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 3650538621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3650538623) 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 7 ways as a sum of consecutive naturals, for example, 14149246 + ... + 14149503.

It is an arithmetic number, because the mean of its divisors is an integer number (622572500).

Almost surely, 2^3650538621 is an apocalyptic number.

It is an amenable number.

3650538621 is a deficient number, since it is larger than the sum of its proper divisors (1330041379).

3650538621 is a wasteful number, since it uses less digits than its factorization.

3650538621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28298795.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 3650538621 is about 60419.6873626470. The cubic root of 3650538621 is about 1539.7574561802.

The spelling of 3650538621 in words is "three billion, six hundred fifty million, five hundred thirty-eight thousand, six hundred twenty-one".