2106207 has 24 divisors (see below), whose sum is σ = 3260400. Its totient is φ = 1306368.

The previous prime is 2106199. The next prime is 2106217. The reversal of 2106207 is 7026012.

It is a happy number.

It is not a de Polignac number, because 2106207 - 2³ = 2106199 is a prime.

It is a super-2 number, since 2×2106207² = 8872215853698, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2106207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18583 + ... + 18695.

It is an arithmetic number, because the mean of its divisors is an integer number (135850).

2^2106207 is an apocalyptic number.

2106207 is a deficient number, since it is larger than the sum of its proper divisors (1154193).

2106207 is a wasteful number, since it uses less digits than its factorization.

2106207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 2106207 is about 1451.2777129137. The cubic root of 2106207 is about 128.1839599351.

The spelling of 2106207 in words is "two million, one hundred six thousand, two hundred seven".