106420717 has 8 divisors (see below), whose sum is σ = 115378200. Its totient is φ = 97573440.

The previous prime is 106420711. The next prime is 106420739. The reversal of 106420717 is 717024601.

It can be written as a sum of positive squares in 4 ways, for example, as 2604996 + 103815721 = 1614^2 + 10189^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 106420717 - 2³ = 106420709 is a prime.

It is a super-2 number, since 2×106420717² = 22650738013588178, 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 (106420711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25534 + ... + 29407.

It is an arithmetic number, because the mean of its divisors is an integer number (14422275).

Almost surely, 2^106420717 is an apocalyptic number.

It is an amenable number.

106420717 is a deficient number, since it is larger than the sum of its proper divisors (8957483).

106420717 is a wasteful number, since it uses less digits than its factorization.

106420717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55103.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 106420717 is about 10316.0417312068. The cubic root of 106420717 is about 473.8876531141.

The spelling of 106420717 in words is "one hundred six million, four hundred twenty thousand, seven hundred seventeen".