106640629 has 2 divisors, whose sum is σ = 106640630. Its totient is φ = 106640628.

The previous prime is 106640557. The next prime is 106640647. The reversal of 106640629 is 926046601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56655729 + 49984900 = 7527^2 + 7070^2 .

It is a cyclic number.

It is not a de Polignac number, because 106640629 - 2¹⁹ = 106116341 is a prime.

It is a super-2 number, since 2×106640629² = 22744447507031282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106640594 and 106640603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106640659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53320314 + 53320315.

It is an arithmetic number, because the mean of its divisors is an integer number (53320315).

Almost surely, 2^106640629 is an apocalyptic number.

It is an amenable number.

106640629 is a deficient number, since it is larger than the sum of its proper divisors (1).

106640629 is an equidigital number, since it uses as much as digits as its factorization.

106640629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 106640629 is about 10326.6949698342. The cubic root of 106640629 is about 474.2138486241.

The spelling of 106640629 in words is "one hundred six million, six hundred forty thousand, six hundred twenty-nine".