106388747 has 4 divisors (see below), whose sum is σ = 107735520. Its totient is φ = 105041976.

The previous prime is 106388729. The next prime is 106388749. The reversal of 106388747 is 747883601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 106388747 - 2¹² = 106384651 is a prime.

It is a super-2 number, since 2×106388747² = 22637130976460018, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 106388698 and 106388707.

It is not an unprimeable number, because it can be changed into a prime (106388749) 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, 673268 + ... + 673425.

It is an arithmetic number, because the mean of its divisors is an integer number (26933880).

Almost surely, 2^106388747 is an apocalyptic number.

106388747 is a deficient number, since it is larger than the sum of its proper divisors (1346773).

106388747 is an equidigital number, since it uses as much as digits as its factorization.

106388747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346772.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 106388747 is about 10314.4920863802. The cubic root of 106388747 is about 473.8401946052.

The spelling of 106388747 in words is "one hundred six million, three hundred eighty-eight thousand, seven hundred forty-seven".