2008836921 has 96 divisors (see below), whose sum is σ = 3605422080. Its totient is φ = 971455680.

The previous prime is 2008836919. The next prime is 2008836937. The reversal of 2008836921 is 1296388002.

It is a happy number.

It is not a de Polignac number, because 2008836921 - 2¹ = 2008836919 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 2008836921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2008836911) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 64801176 + ... + 64801206.

It is an arithmetic number, because the mean of its divisors is an integer number (37556480).

Almost surely, 2^2008836921 is an apocalyptic number.

2008836921 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2008836921 is a deficient number, since it is larger than the sum of its proper divisors (1596585159).

2008836921 is an equidigital number, since it uses as much as digits as its factorization.

2008836921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 2008836921 is about 44820.0504350453. The cubic root of 2008836921 is about 1261.7739606948.

The spelling of 2008836921 in words is "two billion, eight million, eight hundred thirty-six thousand, nine hundred twenty-one".