106891443 has 12 divisors (see below), whose sum is σ = 155899120. Its totient is φ = 70568496.

The previous prime is 106891439. The next prime is 106891451. The reversal of 106891443 is 344198601.

It is not a de Polignac number, because 106891443 - 2² = 106891439 is a prime.

It is a super-2 number, since 2×106891443² = 22851561173244498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 106891398 and 106891407.

It is not an unprimeable number, because it can be changed into a prime (106891493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56728 + ... + 58581.

Almost surely, 2^106891443 is an apocalyptic number.

106891443 is a deficient number, since it is larger than the sum of its proper divisors (49007677).

106891443 is a wasteful number, since it uses less digits than its factorization.

106891443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115418 (or 115415 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 106891443 is about 10338.8318005469. The cubic root of 106891443 is about 474.5853341396.

The spelling of 106891443 in words is "one hundred six million, eight hundred ninety-one thousand, four hundred forty-three".