2108997606 has 64 divisors (see below), whose sum is σ = 4591883520. Its totient is φ = 643530240.

The previous prime is 2108997601. The next prime is 2108997607. The reversal of 2108997606 is 6067998012.

2108997606 = T₆₂₂₅ + T₆₂₂₆ + ... + T₆₃₃₁.

It is a super-2 number, since 2×2108997606² = 8895741804227462472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108997601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 498010 + ... + 502226.

It is an arithmetic number, because the mean of its divisors is an integer number (71748180).

Almost surely, 2^2108997606 is an apocalyptic number.

2108997606 is an abundant number, since it is smaller than the sum of its proper divisors (2482885914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2108997606 is a wasteful number, since it uses less digits than its factorization.

2108997606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4389.

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 2108997606 is about 45923.8239479249. The cubic root of 2108997606 is about 1282.4054713376.

The spelling of 2108997606 in words is "two billion, one hundred eight million, nine hundred ninety-seven thousand, six hundred six".