2106870999 has 8 divisors (see below), whose sum is σ = 2862164592. Its totient is φ = 1378079040.

The previous prime is 2106870971. The next prime is 2106871033. The reversal of 2106870999 is 9990786012.

It is a happy number.

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

It is not a de Polignac number, because 2106870999 - 2¹⁵ = 2106838231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106870929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6625222 + ... + 6625539.

It is an arithmetic number, because the mean of its divisors is an integer number (357770574).

Almost surely, 2^2106870999 is an apocalyptic number.

2106870999 is a deficient number, since it is larger than the sum of its proper divisors (755293593).

2106870999 is a wasteful number, since it uses less digits than its factorization.

2106870999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13250817.

The product of its (nonzero) digits is 489888, while the sum is 51.

The square root of 2106870999 is about 45900.6644723146. The cubic root of 2106870999 is about 1281.9742886743.

The spelling of 2106870999 in words is "two billion, one hundred six million, eight hundred seventy thousand, nine hundred ninety-nine".