106620891 has 8 divisors (see below), whose sum is σ = 153096720. Its totient is φ = 65612832.

The previous prime is 106620881. The next prime is 106620911. The reversal of 106620891 is 198026601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 106620891 - 2⁵ = 106620859 is a prime.

It is a super-2 number, since 2×106620891² = 22736028795267762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106620841) 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, 1366896 + ... + 1366973.

It is an arithmetic number, because the mean of its divisors is an integer number (19137090).

Almost surely, 2^106620891 is an apocalyptic number.

106620891 is a deficient number, since it is larger than the sum of its proper divisors (46475829).

106620891 is a wasteful number, since it uses less digits than its factorization.

106620891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733885.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 106620891 is about 10325.7392471435. The cubic root of 106620891 is about 474.1845895741.

The spelling of 106620891 in words is "one hundred six million, six hundred twenty thousand, eight hundred ninety-one".