106278891 has 8 divisors (see below), whose sum is σ = 144720384. Its totient is φ = 69345000.

The previous prime is 106278889. The next prime is 106278919. The reversal of 106278891 is 198872601.

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

It is not a de Polignac number, because 106278891 - 2¹ = 106278889 is a prime.

It is a super-2 number, since 2×106278891² = 22590405344379762, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (106273891) 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, 376735 + ... + 377016.

It is an arithmetic number, because the mean of its divisors is an integer number (18090048).

Almost surely, 2^106278891 is an apocalyptic number.

106278891 is a deficient number, since it is larger than the sum of its proper divisors (38441493).

106278891 is an equidigital number, since it uses as much as digits as its factorization.

106278891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753801.

The product of its (nonzero) digits is 48384, while the sum is 42.

The square root of 106278891 is about 10309.1653881388. The cubic root of 106278891 is about 473.6770441560.

The spelling of 106278891 in words is "one hundred six million, two hundred seventy-eight thousand, eight hundred ninety-one".