3836421897 has 16 divisors (see below), whose sum is σ = 6377428992. Its totient is φ = 1992946320.

The previous prime is 3836421887. The next prime is 3836421913. The reversal of 3836421897 is 7981246383.

It is not a de Polignac number, because 3836421897 - 2¹⁰ = 3836420873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3836421847) 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, 8303713 + ... + 8304174.

It is an arithmetic number, because the mean of its divisors is an integer number (398589312).

Almost surely, 2^3836421897 is an apocalyptic number.

It is an amenable number.

3836421897 is a deficient number, since it is larger than the sum of its proper divisors (2541007095).

3836421897 is a wasteful number, since it uses less digits than its factorization.

3836421897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16607908.

The product of its digits is 1741824, while the sum is 51.

The square root of 3836421897 is about 61938.8561163346. The cubic root of 3836421897 is about 1565.4605233871.

The spelling of 3836421897 in words is "three billion, eight hundred thirty-six million, four hundred twenty-one thousand, eight hundred ninety-seven".