2106396471 has 4 divisors (see below), whose sum is σ = 2808528632. Its totient is φ = 1404264312.

The previous prime is 2106396433. The next prime is 2106396497. The reversal of 2106396471 is 1746936012.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2106396471 - 2²⁷ = 1972178743 is a prime.

It is a super-3 number, since 3×2106396471³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106396371) 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 3 ways as a sum of consecutive naturals, for example, 351066076 + ... + 351066081.

It is an arithmetic number, because the mean of its divisors is an integer number (702132158).

Almost surely, 2^2106396471 is an apocalyptic number.

2106396471 is a deficient number, since it is larger than the sum of its proper divisors (702132161).

2106396471 is an equidigital number, since it uses as much as digits as its factorization.

2106396471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702132160.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 2106396471 is about 45895.4951057291. The cubic root of 2106396471 is about 1281.8780356095.

The spelling of 2106396471 in words is "two billion, one hundred six million, three hundred ninety-six thousand, four hundred seventy-one".