106870389 has 4 divisors (see below), whose sum is σ = 142493856. Its totient is φ = 71246924.

The previous prime is 106870327. The next prime is 106870409. The reversal of 106870389 is 983078601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 106870389 - 2¹² = 106866293 is a prime.

It is a super-2 number, since 2×106870389² = 22842560090022642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106870389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106870189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17811729 + ... + 17811734.

It is an arithmetic number, because the mean of its divisors is an integer number (35623464).

Almost surely, 2^106870389 is an apocalyptic number.

It is an amenable number.

106870389 is a deficient number, since it is larger than the sum of its proper divisors (35623467).

106870389 is an equidigital number, since it uses as much as digits as its factorization.

106870389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35623466.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 106870389 is about 10337.8135502629. The cubic root of 106870389 is about 474.5541730056.

The spelling of 106870389 in words is "one hundred six million, eight hundred seventy thousand, three hundred eighty-nine".