106520693 has 4 divisors (see below), whose sum is σ = 107463468. Its totient is φ = 105577920.

The previous prime is 106520653. The next prime is 106520699. The reversal of 106520693 is 396025601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 396025601 = 41 ⋅9659161.

It can be written as a sum of positive squares in 2 ways, for example, as 15547249 + 90973444 = 3943^2 + 9538^2 .

It is a cyclic number.

It is not a de Polignac number, because 106520693 - 2¹⁴ = 106504309 is a prime.

It is a super-2 number, since 2×106520693² = 22693316074400498, which contains 22 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 (106520699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471218 + ... + 471443.

It is an arithmetic number, because the mean of its divisors is an integer number (26865867).

Almost surely, 2^106520693 is an apocalyptic number.

It is an amenable number.

106520693 is a deficient number, since it is larger than the sum of its proper divisors (942775).

106520693 is an equidigital number, since it uses as much as digits as its factorization.

106520693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942774.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 106520693 is about 10320.8862507054. The cubic root of 106520693 is about 474.0360031879.

The spelling of 106520693 in words is "one hundred six million, five hundred twenty thousand, six hundred ninety-three".