106689390 has 32 divisors (see below), whose sum is σ = 256611456. Its totient is φ = 28388640.

The previous prime is 106689367. The next prime is 106689391. The reversal of 106689390 is 93986601.

It is a super-2 number, since 2×106689390² = 22765251877144200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106689391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11109 + ... + 18351.

It is an arithmetic number, because the mean of its divisors is an integer number (8019108).

Almost surely, 2^106689390 is an apocalyptic number.

106689390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

106689390 is an abundant number, since it is smaller than the sum of its proper divisors (149922066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

106689390 is a wasteful number, since it uses less digits than its factorization.

106689390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7744.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 106689390 is about 10329.0556199490. The cubic root of 106689390 is about 474.2861150710.

The spelling of 106689390 in words is "one hundred six million, six hundred eighty-nine thousand, three hundred ninety".