106890388 has 24 divisors (see below), whose sum is σ = 206529120. Its totient is φ = 47999520.

The previous prime is 106890383. The next prime is 106890401. The reversal of 106890388 is 883098601.

It is a happy number.

It is a super-2 number, since 2×106890388² = 22851110093581088, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106890383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10983 + ... + 18286.

It is an arithmetic number, because the mean of its divisors is an integer number (8605380).

Almost surely, 2^106890388 is an apocalyptic number.

It is an amenable number.

106890388 is a deficient number, since it is larger than the sum of its proper divisors (99638732).

106890388 is a wasteful number, since it uses less digits than its factorization.

106890388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29367 (or 29365 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 106890388 is about 10338.7807791828. The cubic root of 106890388 is about 474.5837727761.

The spelling of 106890388 in words is "one hundred six million, eight hundred ninety thousand, three hundred eighty-eight".