106719857 has 2 divisors, whose sum is σ = 106719858. Its totient is φ = 106719856.

The previous prime is 106719853. The next prime is 106719859. The reversal of 106719857 is 758917601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94497841 + 12222016 = 9721^2 + 3496^2 .

It is a cyclic number.

It is not a de Polignac number, because 106719857 - 2² = 106719853 is a prime.

It is a super-2 number, since 2×106719857² = 22778255756200898, which contains 22 as substring.

Together with 106719859, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (106719853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53359928 + 53359929.

It is an arithmetic number, because the mean of its divisors is an integer number (53359929).

Almost surely, 2^106719857 is an apocalyptic number.

It is an amenable number.

106719857 is a deficient number, since it is larger than the sum of its proper divisors (1).

106719857 is an equidigital number, since it uses as much as digits as its factorization.

106719857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 44.

The square root of 106719857 is about 10330.5303348860. The cubic root of 106719857 is about 474.3312576410.

The spelling of 106719857 in words is "one hundred six million, seven hundred nineteen thousand, eight hundred fifty-seven".