106208657 has 4 divisors (see below), whose sum is σ = 106422000. Its totient is φ = 105995316.

The previous prime is 106208653. The next prime is 106208659. The reversal of 106208657 is 756802601.

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 106208657 - 2² = 106208653 is a prime.

It is a super-2 number, since 2×106208657² = 22560557643487298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106208653) 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, 105923 + ... + 106920.

It is an arithmetic number, because the mean of its divisors is an integer number (26605500).

Almost surely, 2^106208657 is an apocalyptic number.

It is an amenable number.

106208657 is a deficient number, since it is larger than the sum of its proper divisors (213343).

106208657 is an equidigital number, since it uses as much as digits as its factorization.

106208657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213342.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 106208657 is about 10305.7584388535. The cubic root of 106208657 is about 473.5726786065.

The spelling of 106208657 in words is "one hundred six million, two hundred eight thousand, six hundred fifty-seven".