106820507 has 4 divisors (see below), whose sum is σ = 106851696. Its totient is φ = 106789320.

The previous prime is 106820491. The next prime is 106820509. The reversal of 106820507 is 705028601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 705028601 = 337 ⋅2092073.

It is a cyclic number.

It is not a de Polignac number, because 106820507 - 2⁴ = 106820491 is a prime.

It is a super-2 number, since 2×106820507² = 22821241431474098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 106820507.

It is not an unprimeable number, because it can be changed into a prime (106820509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9719 + ... + 17552.

It is an arithmetic number, because the mean of its divisors is an integer number (26712924).

Almost surely, 2^106820507 is an apocalyptic number.

106820507 is a deficient number, since it is larger than the sum of its proper divisors (31189).

106820507 is an equidigital number, since it uses as much as digits as its factorization.

106820507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31188.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 106820507 is about 10335.4006695435. The cubic root of 106820507 is about 474.4803284313.

The spelling of 106820507 in words is "one hundred six million, eight hundred twenty thousand, five hundred seven".