106210691 has 4 divisors (see below), whose sum is σ = 107262384. Its totient is φ = 105159000.

The previous prime is 106210669. The next prime is 106210721. The reversal of 106210691 is 196012601.

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

It is a cyclic number.

It is not a de Polignac number, because 106210691 - 2¹⁸ = 105948547 is a prime.

It is a super-2 number, since 2×106210691² = 22561421765394962, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 106210691.

It is not an unprimeable number, because it can be changed into a prime (106210891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525695 + ... + 525896.

It is an arithmetic number, because the mean of its divisors is an integer number (26815596).

Almost surely, 2^106210691 is an apocalyptic number.

106210691 is a deficient number, since it is larger than the sum of its proper divisors (1051693).

106210691 is a wasteful number, since it uses less digits than its factorization.

106210691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051692.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 106210691 is about 10305.8571210744. The cubic root of 106210691 is about 473.5757017143.

The spelling of 106210691 in words is "one hundred six million, two hundred ten thousand, six hundred ninety-one".