106890915 has 16 divisors (see below), whose sum is σ = 171158688. Its totient is φ = 56964096.

The previous prime is 106890893. The next prime is 106890919. The reversal of 106890915 is 519098601.

It is not a de Polignac number, because 106890915 - 2⁶ = 106890851 is a prime.

It is a super-2 number, since 2×106890915² = 22851335419074450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106890919) 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, 28489 + ... + 32021.

It is an arithmetic number, because the mean of its divisors is an integer number (10697418).

Almost surely, 2^106890915 is an apocalyptic number.

106890915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

106890915 is a deficient number, since it is larger than the sum of its proper divisors (64267773).

106890915 is a wasteful number, since it uses less digits than its factorization.

106890915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5558.

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 106890915 is about 10338.8062657156. The cubic root of 106890915 is about 474.5845527191.

The spelling of 106890915 in words is "one hundred six million, eight hundred ninety thousand, nine hundred fifteen".