106909493 has 4 divisors (see below), whose sum is σ = 107725728. Its totient is φ = 106093260.

The previous prime is 106909469. The next prime is 106909499. The reversal of 106909493 is 394909601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 106909493 - 2²² = 102715189 is a prime.

It is a super-2 number, since 2×106909493² = 22859279387034098, 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 106909493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106909499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407921 + ... + 408182.

It is an arithmetic number, because the mean of its divisors is an integer number (26931432).

Almost surely, 2^106909493 is an apocalyptic number.

It is an amenable number.

106909493 is a deficient number, since it is larger than the sum of its proper divisors (816235).

106909493 is an equidigital number, since it uses as much as digits as its factorization.

106909493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816234.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 106909493 is about 10339.7046863051. The cubic root of 106909493 is about 474.6120459228.

The spelling of 106909493 in words is "one hundred six million, nine hundred nine thousand, four hundred ninety-three".