106920784 has 20 divisors (see below), whose sum is σ = 212212980. Its totient is φ = 52156160.

The previous prime is 106920757. The next prime is 106920791. The reversal of 106920784 is 487029601.

It can be written as a sum of positive squares in 2 ways, for example, as 5475600 + 101445184 = 2340^2 + 10072^2 .

It is a super-2 number, since 2×106920784² = 22864108102349312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80839 + ... + 82150.

It is an arithmetic number, because the mean of its divisors is an integer number (10610649).

Almost surely, 2^106920784 is an apocalyptic number.

It is an amenable number.

106920784 is a deficient number, since it is larger than the sum of its proper divisors (105292196).

106920784 is a wasteful number, since it uses less digits than its factorization.

106920784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163038 (or 163032 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 106920784 is about 10340.2506739440. The cubic root of 106920784 is about 474.6287536875.

The spelling of 106920784 in words is "one hundred six million, nine hundred twenty thousand, seven hundred eighty-four".