106722791 has 24 divisors (see below), whose sum is σ = 130027680. Its totient is φ = 85790016.

The previous prime is 106722779. The next prime is 106722793. The reversal of 106722791 is 197227601.

106722791 = T₅₅ + T₅₆ + ... + T₈₆₁.

It is a de Polignac number, because none of the positive numbers 2^k-106722791 is a prime.

It is a super-2 number, since 2×106722791² = 22779508237659362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106722793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 396605 + ... + 396873.

It is an arithmetic number, because the mean of its divisors is an integer number (5417820).

Almost surely, 2^106722791 is an apocalyptic number.

106722791 is a deficient number, since it is larger than the sum of its proper divisors (23304889).

106722791 is a wasteful number, since it uses less digits than its factorization.

106722791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 106722791 is about 10330.6723401723. The cubic root of 106722791 is about 474.3356044583.

The spelling of 106722791 in words is "one hundred six million, seven hundred twenty-two thousand, seven hundred ninety-one".