106599946 has 4 divisors (see below), whose sum is σ = 159899922. Its totient is φ = 53299972.

The previous prime is 106599919. The next prime is 106599947. The reversal of 106599946 is 649995601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 649995601 = 6857 ⋅94793.

It can be written as a sum of positive squares in only one way, i.e., 94965025 + 11634921 = 9745^2 + 3411^2 .

It is a super-2 number, since 2×106599946² = 22727096974405832, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 106599946.

It is not an unprimeable number, because it can be changed into a prime (106599947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26649985 + ... + 26649988.

Almost surely, 2^106599946 is an apocalyptic number.

106599946 is a deficient number, since it is larger than the sum of its proper divisors (53299976).

106599946 is an equidigital number, since it uses as much as digits as its factorization.

106599946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53299975.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 106599946 is about 10324.7249842308. The cubic root of 106599946 is about 474.1535373524.

It can be divided in two parts, 10 and 6599946, that added together give a palindrome (6599956).

The spelling of 106599946 in words is "one hundred six million, five hundred ninety-nine thousand, nine hundred forty-six".