106720697 has 2 divisors, whose sum is σ = 106720698. Its totient is φ = 106720696.

The previous prime is 106720687. The next prime is 106720717. The reversal of 106720697 is 796027601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63936016 + 42784681 = 7996^2 + 6541^2 .

It is a cyclic number.

It is not a de Polignac number, because 106720697 - 2⁴ = 106720681 is a prime.

It is a super-2 number, since 2×106720697² = 22778614336331618, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 106720697.

It is not a weakly prime, because it can be changed into another prime (106720637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53360348 + 53360349.

It is an arithmetic number, because the mean of its divisors is an integer number (53360349).

Almost surely, 2^106720697 is an apocalyptic number.

It is an amenable number.

106720697 is a deficient number, since it is larger than the sum of its proper divisors (1).

106720697 is an equidigital number, since it uses as much as digits as its factorization.

106720697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 106720697 is about 10330.5709909956. The cubic root of 106720697 is about 474.3325021368.

The spelling of 106720697 in words is "one hundred six million, seven hundred twenty thousand, six hundred ninety-seven".