106999999 has 4 divisors (see below), whose sum is σ = 107507320. Its totient is φ = 106492680.

The previous prime is 106999993. The next prime is 107000009. The reversal of 106999999 is 999999601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999999601 = 53 ⋅18867917.

It is a cyclic number.

It is not a de Polignac number, because 106999999 - 2¹⁹ = 106475711 is a prime.

It is a super-2 number, since 2×106999999² = 22897999572000002, which contains 22 as substring.

It is a Duffinian number.

106999999 is a modest number, since divided by 99999 gives 1069 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106999993) 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, 253344 + ... + 253765.

It is an arithmetic number, because the mean of its divisors is an integer number (26876830).

Almost surely, 2^106999999 is an apocalyptic number.

106999999 is a deficient number, since it is larger than the sum of its proper divisors (507321).

106999999 is an equidigital number, since it uses as much as digits as its factorization.

106999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507320.

The product of its (nonzero) digits is 3188646, while the sum is 61.

The square root of 106999999 is about 10344.0803844518. The cubic root of 106999999 is about 474.7459383734.

The spelling of 106999999 in words is "one hundred six million, nine hundred ninety-nine thousand, nine hundred ninety-nine".