106439659 has 4 divisors (see below), whose sum is σ = 106524160. Its totient is φ = 106355160.

The previous prime is 106439651. The next prime is 106439677. The reversal of 106439659 is 956934601.

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 106439659 - 2³ = 106439651 is a prime.

It is a super-2 number, since 2×106439659² = 22658802016072562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106439651) 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, 40332 + ... + 42889.

It is an arithmetic number, because the mean of its divisors is an integer number (26631040).

Almost surely, 2^106439659 is an apocalyptic number.

106439659 is a deficient number, since it is larger than the sum of its proper divisors (84501).

106439659 is an equidigital number, since it uses as much as digits as its factorization.

106439659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84500.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 106439659 is about 10316.9597750500. The cubic root of 106439659 is about 473.9157674627.

It can be divided in two parts, 10643 and 9659, that added together give a palindrome (20302).

The spelling of 106439659 in words is "one hundred six million, four hundred thirty-nine thousand, six hundred fifty-nine".